Evaluate - 7 (x - 4y) when x = - 4 and y = - 6

Use substitution to solve each system of equations y=3x-7 3x-y=7

Show how to solve 378x6 using place value and regrouping

A water wheel makes 28 revolutions in 90 seconds. how many revolutions can it make in 4 minutes?

Shirley bought. 20.8 pounds of bird seed at a birgain store. she wants to fill her feeder 100 times with an equal amount. how much seed should she put in the feeder each time?

The length of a swimming pool is 8m longer than its width and the area is 1o5m2?

What is the the importance and applications of percentages in the real world?

What is the volume of the cuboid if it is 0.4cm x 1.5cm x 3.25cm

Write each fraction as an expression with negative exponents. v/w raised to the second power ... ?

Rachel spends 1/4 of her money on chocolate, 1/8 on pizza. She has $40 remaining. How much did she have at the beginning?

An Adult ticket at an amusement park costs $24.95 and a child's ticket costs $15.95. A group of 10 people paid $186.50 to enter the park. How many were adults