PLEASE HELP ME FAST! Angela earned 90% on her unit 2 test. If there were 18 questions on the test, how many questions did she answer correctly?

She answered 16.2 of the questions correct.

Step-by-step explanation:

First you have to move the decimal point on the 90% 2 places to the left so it's 0.90 and then you multiply that by 18 to get 16.2.

the difference between a number and 5 is -2.

step-by-step explanation:

notice that the equation you are given has -2 (negative 2) on the right side, not 2. when you subtract 5 from a number n, you are finding the difference between the number and 5.

the difference between a number and 5 is -2.