James took a math quiz in which he earned 1 point for every correct answer and lost 0.5 points for every incorrect answer. james answered 12 out of 18 questions correctly. what was james quiz score?

Bring the fraction a/a-4 to a denominator of 16-a^2

The table shows the number of hours orlando spent at football practice last week. select the appropriate numbers below to complete the model to find the number of hours orlando spent practicing on tuesday and friday.

Use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2 + 9 = −26 −3 − 7 = 13