An appliance store offered gift cards to people making purchases. If a customer purchased a microwave, they received a $25 gift card. If a
customer purchased a washing machine, they received a $50 gift card. During this promotion, the store gave away 54 gift cards. The total
value of the gift cards was $2,250.
How many $25 gift cards were given out during the promotion?
A)12
B)18
C)36
D)48

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d

step-by-step explanation:

if you are looking for the unit rate then the answer would be 9 because unit rate is distance divided by time.

step-by-step explanation:

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)