Caleb scored 60 on his first math test. he studied diligently for the next test and earned a score of 90. what is his percent of increase from the first test to the second test?

Which of the following is equivalent to 18 minus square root negative 25

How many solutions does the pair of equations y = 0 and y = - 5 have?

What is the solution to the equation 7 (a - 10) = 13 - 202a + 3) ?

To stay properly hydrated, a person should drink 32 fluid ounces of water for every 60 minutes of exercise. how much water should Damon drink if he rides his bike for 135 minutes?

Find the sum of the "n" terms of the series: Sn=1²+3²+5² + ... + (2n-1) ²

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.