The altitude of an airplane is decreasing at a rate of 42 feet per second. What is the change in altitude of the airplane over a period of 34 seconds? A. -1,428 feet B. -76 feet C. 76 feet D. 1,428 feet

A, -1428

Step-by-step explanation: All you have to do is -42 ×34

i used to know how to do this in 7th but i forget easily

step-by-step explanation:

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x