Evaluate 9P + 4Q when P=6 and Q = -4

Evaluate XY/X-Y when X = 3 and Y = -5

Which of the following is the true for f(x) = 5cos

Janice determined there were 10 possible outcomes when tossing two coins and spinning a spinner numbered 1 through 6. what is the correct number? what might have been janice's error?

Miguel has 334 baseball cards and 278 football cards. he says, i have 612 cards in all. is that reasonable? explain using the words round and estimate.