Asporting goods store is having a 15% off sale on all items. which functions can be used to find the sale price of an item that has an original price of x? you may choose more than one correct answer.

ƒ(x) = x - .15x
sale = original - 15
ƒ(x) = 1.15x
sale = original - .15(original)
y = .85x

What is the average rate of change for this function for the interval from x=2 to x=4 ?

Noor brought 21 sheets of stickers. she gave 1/3 of a sheet to each of the 45 students at recess. she wants to give teachers 1 1/2 sheets each.

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.