One number is 4 less than 3 times another if the sum of the numbers is 36, what are the two numbers?

Which best explains why this triangle is or is not a right triangle?

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.