Ineed with three math (algebra) problems?
1. which expression has a value of 66
a) (7^2 - 8) × 2 - 16
b) 7^2 - 8 × (2 - 16)
c) 7^( - 8 × 2) - 16
d) 7^2 - 8 × 2 - 16
2. what is the value of the expression
2( a + b)2 - b) when a = 7 and b =1 ?
a) 14
b) 49
c) 126
d)127
4) what is the value of the expression
8 - (2^2 + 48) ÷ 8
a) -6
b) -1
c) 1
d) 6