Answer:
C
Step-by-step explanation:
y=-2x+3
81.

multiply everything with 2

x is the number of 1.50 and 2.50 wrenches he bought. do the calculations for the rest of them
83.

multiply with 4

x is the amount of half dollars in the pile of coins. do the calculations for the quarters.
86.

x is the amount of peaches cans, do the calculations for the rest.
Answer:
875 students are enrolled in this year's freshman class after the first week of classes.
Step-by-step explanation:
Last year, there were 950 students.
This year, the class is 10% smaller. So it's number of students is 100 - 10 = 90% of last year.
0.9*950 = 855
Initially, this year class had 855 students.
During the first week, 20 enrolled.
855 + 20 = 875.
So
875 students are enrolled in this year's freshman class after the first week of classes.
Answer:
897 is the answer
Step-by-step explanation:
23×39 = 897