PLS SHOW WORK WILL GIVE BRAINLIEST Gianna buys a book for $12 and a poster for $15. Posters are on sale for 20% off. Sales tax is 9%. Which expression will calculate the cost of Gianna’s purchase?

A. 12 + 15 - 0.80 + 1.09
B. 12 + 15(0.80)(1.09)
C. (12 + 15)(0.80)(1.09)
D. (12 + 15 ● 0.80)(1.09)

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions

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