precedence is:
1 Parentheses (simplify inside 'em)
2 Exponents
3 Multiplication and Division (from left to right)
4 Addition and Subtraction (from left to right)
(7+41) = 48
48 ÷ 2 = 24
24 -15 = 9
Answer:
105/61 is the answer for 5/6 ÷ 10/21
This one is A. they are complementary
G(x)=2x+1
g(3)=2(3)+1
g(3)=6+1
g(3)=7