Simplify the expression. –4.7 + 5.5
a. 0.8
b. –10.2
c. –0.8
d. 10.2

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

If i have one apple and give you the apple, how many apples do i have?

Which of the following would be a good name for the function that takes the weight of a box and returns the energy needed to lift it?