For every 40 phone calls that jess made in a month, she received 70 phone calls. what is the ratio in simplest form of the number of phone calls made to the number of phone calls received by jess that month?

a 3: 4
b 4: 3
c 7: 4
d 4: 7

In the following situation, determine whether you are asked to determine the number of permutations or combinations. then do the calculation how many ways are there to pick a starting five from a basketball team of twelve members? a. permutation; ps - 2520 b. combination; 1c, - 792 c. combination: 2cs - 2520 d. permutation; ps - 95040

Explain why the factor 1.5 is broke. into two numbers in the model.

Type the correct answer in each box, round your answers to the nearest integer 20 25 30 in the figure, the perimeter of hexagon abcdef is approximately w units, and its area is square units