Please answer all of them BRAINLIEST some has a and b

The candy store is having a 30% off sale. emma is going to buy $7.50 worth of candy.how much will she pay after the discount

2. (09.01 lc) a function is shown in the table. x g(x) −3 17 −1 −3 0 −4 2 13 which of the following is a true statement for this function? (5 points) the function is increasing from x = −3 to x = −1. the function is increasing from x = −1 to x = 0. the function is decreasing from x = 0 to x = 2. the function is decreasing from x = −3 to x = −1.

Which graph represents the function f(x)=4[x]?