Each nurse buys a gift for another nurse in a
hospital. how many nurses are there in the
hospital, if 72 gifts bought in total?

answer:

72

step-by-step explanation:

the ratio of nurses to gifts is 1: 1 -- each nurse must purchase one gift, meaning that the total number of gifts is also the total number of nurses.

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm

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: