Which statements are true according to the order of operations?
choose exactly two answers that are correct.
a.
7 • 6 + 4 = 7 • 10 = 70
b.
16 – (4 + 7) = 12 + 7 = 19
c.
10 + (6 ÷ 3) = 10 + 2 = 12
d.
2 + 5 • 7 = 2 + 35 = 37

To solve these you have to follow the orders of operation(BEDMAS), which means brackets, exponents, division, multiplication, addition, subtraction all in that order. 
A) This is false. 7x6+4=46 and does not equal 7x10 or 70.
B) This is false as well. The answer haste be 19 and 16-(4+7) does not equal 19. You add up what is in the brackets first and then subtract.
This means that C and D have to be true. 
C) 10+(6/3)=12
10+2=12 True
D) 2+5x7=37
2+35=37
Also true

It's C and D.

C. a,b, and d are not numbers. they are expressions.