Jose's history test consists of short answer problems and essay problems. It takes 2 minutes to answer the short answer problems and 4 minutes to answer the essay
problems. Jose has no more than 40 minutes for the test and he may choose no more
than 12 problems to answer.

a and c

for infinitely many solutions we require both left and right sides to be equal

distribute and simplify

a

14 - 8x = 20 - 8x - 6 = 14 - 8x ← both sides equal so infinite solutions

b

6x - 54 = 6x - 54 + x = 7x - 54 ← not equal

c

4x + 16 = 4x + 10 + 6 = 4x + 16 ← both sides equal so infinite solutions

d

5x - 40 + 10 = 5x + 10

5x - 30 = 5x + 10 ← not equal

the answer is 24.04 :

step-by-step explanation:

the answer is 64 cm

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