3. the equation y = 12x describes the amount of money louis earns, where x is the number of hours he works and y is the amount of money he earns. the table shows the amount of money carl earns for different numbers of hours worked. carl’s earnings time (h) 3 5 8 10 money earned ($) 45 75 120 150 (a) how much money does carl earn per hour? show your work. (b) who earns more per hour? justify your answer. (c) draw a graph that represents carl’s earnings over time in hours. remember to label the axes.

a) 45 / 3 = 15, carl earns $15 per hour

b) carl earns 15 and Louis earns 12, so Carl earns more per hour

c) draw a graph with hours across the bottom, and dollars on the vertical.

 use 1, 2, 3, 4, 5, 6 ,7, etc for hours , use 15, 30, 45, 60, 75, 90 , for the Y axis,

 then plot the numbers in the table above and draw a straight line through them

113.1

step-by-step explanation:

v=4

3πr3=4

3·π·33≈113.09734

the above table 1 will calculate the population size (n) after a certain length of time (t). all you need to do is plug in the initial population number (no), the growth rate (r) and the length of time (t). the constant (e) is already entered into the equation. it stands for the base of the natural logarithms (approximately 2.71828). growth rate (r) and time (t) must be expressed in the same unit of time, such as years, days, hours or minutes. for humans, population growth rate is based on one year. if a population of people grew from 1000 to 1040 in one year, then the percent increase or annual growth rate is 40/1000 x 100 = 4 percent.

step-by-step explanation: