Mary had 21 dollars to spend on 2 notebooks. After buying them he had 13 dollars. How much did each notebook cost?

Use the definitions for the sets given below to determine whether each statement is true or false: A = { x ∈ Z: x is an integer multiple of 3 } B = { x ∈ Z: x is a perfect square } C = { 4, 5, 9, 10 } D = { 2, 4, 11, 14 } E = { 3, 6, 9 } F =

Suppose that each quater at a Particular community College Jared has to pay 729 in tuition and 22 in fees. If Jared has 5 quarters remainning find the total amount he will need for tuition and fees.

If y varies inversely as x and y=3 when x=8 what is x when y=4

Write a number greater than 714,587.

What times what equals 27

In a class of 26 student, 15 of them like maths, 13 of them like english and 9 of them don't like maths or english. Find the probability that a student chosen at random like english but not maths.

American car travels 32 miles on 1 gallon of gas European car travels 12.7 km on 1 L of gas which car gets better gas mileage explain your reasoning

78% of what number is 117?

The coefficients of the expression 2x^3-5x^2+x are:

Tuna provides 30 calories per ounce. On a graph representing the relationship between the number of ounces of tuna a person consumes and the number of calories the tuna provides which quantity should be graphed on the x-axis