The top of a 25-foot ladder is sliding down a vertical wall at a constant rate of 3 feet per minute. When the top of the ladder is 7 feet from the ground, how far is the bottom of the ladder from the wall?
If three times Kathy's age is decreased by 36, the result is twice Kathy's age. How old is Kathy?
What is the value of x³ + y² + x²y³ - (x + y), when x = 4 and y = - 3 ?
How do you solve and graph 8x - 21 ≤ 91 ?
How do you solve this equation for y?
(4y + 7) - (4 + 3y) = 12
How do you solve the system of equations:
y = 2x - 4
y = 4x - 10
Find the solution to the system by the substitution method.
3x – 5y = 7
x – 4y = -7
How do you solve this one?
√(x + 1) = √(5x + 4)
The measure of an angle is 8 less than three times its complement. Find the measure of the angle.