Sofia saw a sign that all calculators were 20% of the regular price. She determined that she substituted the price of the calculator she wants (c) to the expression c-0.2c, she could find the sale price of the calculator after the discount Calculator her the discount
What is the expression when written in simplest form?
the sale price of the calculator was $28.00, what was the original price? Justify your solution

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

step-by-step explanation:

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it

answer: 10 turtles

step-by-step explanation: as turtles have four legs so 4.10=40 therefore birds are 4 which sue counted