A bag contains blue marbles and red marbles, 75 in total. The number of blue marbles is 5 more than 4 times the number of red marbles. How many blue marbles are there?

You earned $13 on Monday and will earn more money tomorrow., where d is the money you earn tomorrow, represents your total earnings for the two days.

If you graph both sides of the equation 2 (2x + 3) = 4x + 6, what will the graph look like?

Alex thinks of a number. he adds 18 then divides it by 2. he gets the same answer that he would have if he had multiplied the original number by 5. calculate the mystery number.

Jaime has a bored that is 8 feet long. He cuts the board into three equal pieces. How long is each piece?

The expression V = 2x + 6x can be used to find the volume of the trapezoidal prism below. If x = 12 cm, what is the volume of the prism?

Which two numbers does 65/10 lie between?

The vertices of a quadrilateral in the coordinate plane are known. How can the perimeter of the figure be found? Use the distance formula to find the length of each side, and then add the lengths.

0.002840909 to the nearest tenth

What is the cube root of 64?

Perform the indicated operation. (8-15i) + (-3+2i)