Answer:
(c) 4x - 7
Step-by-step explanation:
7x - 3x
= -4x
-5 -2
= -7
4x - 7
Answer:
He needs 31.25 bales of hay to feed 15 horses for two weeks
Step-by-step explanation:
This question can be solved using a rule of three.
25 bales of hay feed 12 horses. How many feed 15 horses?
12 horses - 25 bales of hay
15 horses - x bales of hay



He needs 31.25 bales of hay to feed 15 horses for two weeks
Answer:
He must bring in 40 or more customers.
Step-by-step explanation:
Let x represent the number of customers that he brings in.
He is paid $100 per week plus $5 for every customer he brings in. This means that if he brings in x customers in a week, the expression for the total amount that he would make is
100 + 5x
If he wants to make $300 or more this week, the expression would be
100 + 5x ≥ 300
5x ≥ 300 - 100
5x ≥ 200
x ≥ 200/5
x ≥ 40

Since Square Roots must be greater than or equal to three, just add three to the square root to make it be greater than or equal to negative 3