Zinc roofing weighs 1.6 pounds per square foot. Jose wants to order 357.85 square feet of roofing. Before ordering, he calculates how much weight that will put on his roof. His calculation is shown below. 357.85 x 1.6 214710 + 35785 + 178.925 Why is his answer incorrect? A. He did not line up the decimal points in the factors. B. He put the decimal point in the answer in the wrong place. C. He did not use a placeholder when multiplying by one. D. He did not multiply 6 by 357.85 correctly.

(C)

Step-by-step explanation:

Right on unit test

step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!

the answer is 24

step-by-step explanation: