Answer:
1a. first 7×9=63 Then substracting 16 we get 47 and 2-47= -45
a. - 77
b. 4
c. 5x-14
d. 14
Step-by-step explanation:
a. 2-(7*9)-16
=> 2-63-16
=>(-61) - 16
=> -77
b.64 / 4+(3*4)
=> 64 / 4+12
=> 64 / 16
=> 4
c. 3x+2(x-7)
=> 3x+2x - 14
=> 5x-14
d. 5 + 6^2/ 4
=> 5+ 36/4
=> 5+9
=> 14
