Answer:
A) -28r + 21
Step-by-step explanation:
-7(4r -3)
Distribute the -7
-7*4r -7*(-3)
-28r +21
3x8= $24 for a box of paper. So, D) 24x12 is the answer. For 12 boxes it would cost $288.
Answer:
2.89, rounded to the nearest hundredth
Step-by-step explanation:
Given that GPA is weighted by credits, we must first multiply each grade by its credit amount and sum those up to weigh the credits. Then, we divide by the total amount of credits to get the GPA per credit.
So, we start with math,
3.7 *5 + 1.8 *3 + 2.8 * 5 + 2.8 * 4 = 49.1 as the total GPA weighted per credit.
Then, to find the average per credit, we divide by the total amount of credits, which is 5 + 3 + 5 + 4 = 17.
Our answer is 49.1/17 = 2.89, rounded to the nearest hundredth
