In 2010, a town's population was 83 thousand. by 2015 the population had grown to 105 thousand. a) find an exponential equation for the town's population. b) determine in what year the population will exceed 135 thousand. as always, show your work for finding the equation and solving for the year algebraically.

(a)

(b) 2020

Step-by-step explanation:

(a) Let the exponential equation that shows the population in thousand after x years,

Also, suppose the population is estimated since 2010,

So, x = 0, y = 83 thousands,

Again by 2015 the population had grown to 105 thousand,

i.e. y = 105, if x = 5,

Hence, the required function,

(b) if y = 135,

Hence, after approximately 10 years since 2010 i.e. in 2020 the population would be 135.

40% off the regular price is the correct answer.

step-by-step explanation:

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls