A) 3(x + 9) b) 4(x - 1)
c) 5(5x + 2)
d) 8(3x - y)
please do this i need it for an assignment

Roger and natalie travel in similar cars. roger's car drives the two miles to school in 7.5 minutes. natalie drives the same distance in the opposite direction but in only 6.5 minutes. what is true of their velocities?

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

What is the solution of the systems of equations? y=2/3x+3 x=-2