Justin bought a calculator and a binder for 15% off the original price. the original price of the binder is $6.20.justin spent a total of 107.27. what was his original price of the calculator

102

to calculate what he spent of the calculator multiple 6.20 by 15 percent of .15 which gives you .93 cents that means 15 percent is 93 cents so you subtract that from the original to get the sale price which is 5.27. subtract this from the total he spent 107.27 and you get 102 so he spent 102 on the calculator. But thats the sale price of if, so the full price must be a little over a hundred. All i did was take 120 multiple it by .15 and figure out that its 18 dollard of meaning that the full price was 120

c is the correct answer

step-by-step explanation:

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6