Answer:
C. 1.87
Step-by-step explanation:
3.5x - 2.8 = -4.67x + 12.5
3.5x + 4.67x = 12.5 + 2.5
8.17x = 15.3
x = 15.3 ÷ 8.17
x = 1.87270501836
So, the closest choice to 1.87270501836 is 1.87, so the answer is C.
Hence, the answer would be C. 1.87. I am 100% sure on this, for I am a pro.
z = - .5
z = (x - μ)/ σ
z = 56 - 60/8 = -.5
D
Answer: The cost for each subscription is $19.5
32m=624
Divide 32 on both sides:
32m/32=624/32
m=19.5