Evaluate x-2y when x=3, y=-3

Simplify 4 to the power of 2 x 4 to the power of 8 4^16 4^10 16^16 16^10

An acute angle θ is in a right triangle with cos θ = 9/10. What is the value of sec θ?

How do I simplify 4b-7-15b+3

Identify radicand of 2 either as a rational or irrational

At 0°C, the volume of a gas is 22 liters. For each degree the temperature T (in degrees Celsius) increases, the volume V (in liters) of the gas increases by 2/25. Write an equation that represents the volume of the gas in terms of the temperature.

Write a variable expression to describe the rule for the sequence. then find the 100th term in the sequence. - 4, 1, 6, 11, 16

Find the diameter and radius of a circle that has a circumference of a 23 cm

Consider the arithmetic sequence 13, 16, 19, 22, 25, ... Write the sequence in another way.

Which ordered pair is a solution to the equation 4x + 7y = - 5?

Jack says that because kites do not have parallel sides, a square is not a kite. Explain his error in thinking.