Hiroto's texting plan costs $20 per month, plus $0.05 per text message that is sent or received. Emilia's plan costs
$10 per month and $0.25 per text. Using the graph below,
which statement is true?

The question is incomplete:

Hiroto's texting plan costs $20 per month, plus $0.05 per  text message that is sent or received. Emilia's plan costs  $10 per month and $0.25 per text. Using the graph below,  which statement is true?

A. Hiroto’s plan costs more than Emilia’s plan when more than 50 texts are sent.

B. Both plans cost the same when 22 texts are sent.

C. Emilia’s plan costs more than Hiroto’s plan when more than 22 texts are sent.

D. Both plans cost the same when 50 texts are sent.

THE GRAPH IS ATTACHED.

D. Both plans cost the same when 50 texts are sent.

Explanation:

The answer is that both plans cost the same when 50 texts are sent as both lines intersect in 50 texts with a price of $22.5 which means that they cost the same.

The other options are not right:

-Hiroto’s plan costs more than Emilia’s plan when more than 50 texts are sent.  This is not true because in the graph you can see that after 50 texts Emilia's line is higher which indicates that her plan has a higher costs.

-Both plans cost the same when 22 texts are sent.  This is not true because the lines don't intersect at the same point when 22 texts are sent.

-Emilia’s plan costs more than Hiroto’s plan when more than 22 texts are sent.  This is false because when 22 texts are sent Emilia's plan costs around $15.5 and Hiroto's plan costs around $21 and Hiroto's plan is more expensive until they reach 50 texts that is the only point where they cost the same.

D. Both plans cost the same when 50 texts are sent.

Step-by-step explanation:

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.

could you provide figure.