The number of pencils sold varies directly as the cost. if 5 pencils cost $0.45, find the cost of 7 pencils.

A square has a perimeter of 44 feet. What is the area, in square feet, of the square

Justin has 450 to buy supplies for the school computer lab. He buys 8 boxes of printer that costs 49 each (a) About how much money does Justin spend on the printer paper?

100 + 20m when m = 5 1/4

Each member of a cross - country team runs 6.2 miles each day at practice. The team has 5 members. What is the total number of miles the 5 members will run in 18 practices? A : 111.6 B : 552 C : 555 D : 558

Given a polynomial function f (x), describe the effects on the y-intercept, regions where the graph is increasing and decreasing, and the end behavior when the following changes are made. Make sure to account for even and odd functions.

What is 0.0000003105 in scientific notation?

The area of a triangle is 15 square inches. the triangles height is 5 inches. what is the length of the base? a) 6 inches b) 8 inches c) 10 inches d) 12 inches

What is the slope of 1,18 and 20,38

What is the number of cubic inches in 1 cubic foot

Suppose that X is the number of hours that a computer is used in a computer lab on campus. The table below is the probability distribution for X. What is the expected value of X, that is, what is the mean its distribution? X 0 1 2 3 4Probability 0.