Question

You were billed $28.50 for additional data usage on your cell phone at a rate of $9 per gigabyte. Three choices are correct ways to calculate the additional gigabytes, g, that you used. Which choice is NOT?
a.) 9g = 28.5
b.) 9/g = 28.5
c.) 28.5 = 9 x g
d.) 28.5/9 = g

Will give brainliest if correct ♥

Answer 1

Letter A is a correct way because $9 * gigabyte = total cost (28.50)
Letter C is a correct way, It is the same as Letter A except they use an 'x' for multiplication.
Letter D is correct because 28.50/the cost of additional gigabytes($9) gives the amount of the gigabytes used.

Letter B is incorrect.

Answer 2

Letter A is a correct way because $9 * gigabyte = total cost (28.50)

Letter C is a correct way, It is the same as Letter A except they use an 'x' for multiplication.

Letter D is correct because 28.50/the cost of additional gigabytes($9) gives the amount of the gigabytes used.

Letter B is incorrect.