50 points! roland must purchase plywood and two-by-fours for a construction project. each sheet of plywood costs $12 and each two-by-four costs $2.50. roland can spend at most $100, and he must purchase at least 4 sheets of plywood. let x represent the number of sheets of plywood purchased. let y represent the number of two-by-fours purchased. which inequalities are among the constraints for this situation? select each correct answer. y ≥ 4 2.5x + 12y ≤ 100 x ≥ 4 y > 0 x + y ≥ 100 12x + 2.5y ≤ 100

x≥4

y>0

12x+2.5y≤100

Step-by-step explanation:

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: