Evaluate 4a + 5b when a=3 and b=-1.2

In a certain high school, exactly 30% of the students are freshman. If there are 2020 students in the high school, how many are not freshman

What is a algebraic expression with a degree of 5

Question: A teacher spent $64 buying two types of games. One type cost $12 each and the other $14 each. How many of the $12 games did she buy?

What is the period of 913 in 913,256

Write a linear equation in slope intercept form to model the situation and internet company charges $4.95 per month plus $2.50 for each hour of use how much would it cost in a month when you use the internet for 14 hours

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.