At the corner store, nico bought 5 pencils for $0.10 each and 3 pens for $0.50 each. he used t to represent the sales tax, in dollars, that he also paid. he paid a total of $2.12, including tax.

nico wrote this equation to represent what he paid. what errors, if any, did he make?

5(0.10) + 3(0.50) - t = 2.12
he should have multiplied 0.10 by 3 instead of 5.
he should have multiplied 0.50 by 5 instead of 3.
he should have added t instead of subtracting t.
he should have multiplied by t instead of subtracting t.

C. He should have added t instead of subtracting t

Step-by-step explanation: Edg  folks

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have