The equation y = 109.62(1.023) models the population of a country from 1920 through 1990. In the equation, y is the population in millions and x represents the number of years after 1920
a. Estimate the population of the country in 1970
b. Assuming this equation continues to be valid in the future, use the equation to predict the population of the country in 2050
a.
million people (Round to the nearest tenth.)
b. million people (Round to the nearest tenth.)

idk

step-by-step explanation:

idk

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40

2500

step-by-step explanation:

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x