Answer:
B Step-by-step explanation:
4a-9b=22
substitute b=-2
4a -9(-2) = 22
4a +18 =22
subtract 18 from each side
4a = 4
divide by 4
a =1
Choice C
Answer:
3x - 14
Step-by-step explanation:
Perimeter = 2(length+width)
= 2[(½X-7) + (x)]
= 2[½x + x - 7]
= 2[1.5x - 7]
= 3x - 14
Answer:
121 tickets
Step-by-step explanation:
16x7+9=121
I hope this helps
Step-by-step explanation:
it will take you 15 minutes