9. Bed bath and Beyond offers 2 different types of coupons: One coupon is for $5 off any item, the other coupon is for 20% off any item. A. Will buys an item and realizes that both coupons would give him the same discount. What was the original price of Will’s item? Justify your answer. B. Gianna finds a blender that was already 30% off. She also uses her 20% off coupon. The blender’s original price is $80. She thinks “Thirty percent and twenty percent make fifty percent so it will cost $40”. Is Gianna correct? Show or explain your thinking.

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

yes the data was not prsented

step-by-step explanation:

x is the total time in minutes for the free response

you are given number of questions as 15 - m and time per item as 8 minutes

to find x multiply the two givens together:

x = 8 * (15-m) = 8(15-m)

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct