Question 3 (5 points)
Solve 23/42 + 2) = 2(1/82-1/2) for z.
O A) z=-3
B) z=2
O C) z=-4
OD) z=5

step-by-step explanation:

the multiplicative inverse of a fraction a/b is b/a. for the multiplicative inverse of a real number, divide 1 by the number. for example, the reciprocal of 5 is one fifth 1/5 or 0.2, and the reciprocal of 0.25 is 1 divided by 0.25, or 4.

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm