Answer: (D) 9
<u>Step-by-step explanation:</u>
This is an isosceles triangle. Since the legs are congruent, then the base angles are congruent.
9x + 3 = 84
<u> - 3 </u> <u> -3 </u>
9x = 81
<u>÷9 </u> <u>÷9 </u>
x = 9
5a - 10*3 = 45
5a - 30 = 45
5a = 45 + 30
5a = 75
a = 15
Answer:
x=90/7
Step-by-step explanation:
7x=90
x=90/7
Answer:
18,000 is the maximum and indicates highest profit
Step-by-step explanation:
sorry for leaving that second part out