1. PLZ HELP
Simplify the expression: Show your work. Write the answer in standard form (15 +6d - d²) + (-5d² - 18 + 6d)

Aclass consists of 55% boys and 45% girls. it is observed that 25% of the class are boys and scored an a on the test, and 35% of the class are girls and scored an a on the test. if a student is chosen at random and is found to be a girl, the probability that the student scored an ais

Shannon drove for 540 minutes. if she traveled 65 miles per hour,how many total miles did she travel?

What is the simplified form of square root of 400 to the 100th power ?