1 Which number makes the following
equation true?
5x 10+ =7.5 X 10^
A. 1.5 x 10
B. 2.5 x 10
C. 2.5 X 10
D. 7 x 10

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.

5(2a-5+b). xbox xboxxbx xb

Yes. there is a constant ratio of number of calories to gram of protein.12/3=24/4=32/8=44/11=4