In January Mr. Tan's students read 20 books. In February, they read 15 books. What is the percent increase or decrease in the number of books the read?

Solve the equation - 2(m -30) = -6m a-15 b-13 c-8 d8

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers

Seattle, washington is known for being rainy. one day last month, 8 inches of rain fell in 1 1/2 hours. what us the rate of the rainfall expressed in ft per plzzz write a proportion i will give you 100 points