Suppose the population of a certain city is 5515 thousand. It is expected to decrease to 4643 thousand in 50 years. Find the percent decrease. The percent decrease is approximately %
(Round to the nearest tenth.)

15.8%

Step-by-step explanation:

5515=100%

5515-4643=872

5515=100%

872=?

871×100÷5515=15.8114233908

15.8114233908 round off to the nearest tenths

=15.8% is the %decrease

no not all of them.

step-by-step explanation:

some of them have a square base.

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10