carlos teaches guitar lessons at guitar shack. he charged a one time registration fee of $10 and each lesson costs $20. he keeps all the money he collects. what is the rate of change?

A farmer sells 6.8 kilograms of apples and pears at the farmer's market. 2 5 of this weight is apples, and the rest is pears. How many kilograms of pears did she sell at the farmer's market?

In 33 hours, a car travels 120 miles. What is the speed of the car?

I am four times as old as my brother and in two years time i will be just three times as old. in how many years will i be twice as old as my brother?

For what value of (a) does the equation 3x+5=ax+5 have infinitely many solutions? Explain.

Geometry express the area of a square with sides of length 5ab as a monomial

Which of the following statements must be true in order for the line represented by the equation y = mx + b to have a negative x-intercept? The signs of the values of m and b are the same. The value of m is positive while the value of b is negative.

Carlos operates a helicopter. Carlos decides to measure the rotational velocity of the helicopter blades. What would be an appropriate unit for Carlos's purpose?

A textbook in the college bookstore had an original price of $185.50. Since then the inflation rate has been 4%. Find the current price of the book. $189.50 $195.40 $192.92 $187.25

This lesson will discuss more theorems about the parts of a circle. True False

Explain how to use a number line to show that opposites quantities combine to make 0