She bought 4 Movies and 3 CDs so she spend $19.50 bc 3+3+3+3=12 so 2.50+2.50+2.50=7.50 so 7.50+12=19.50
Answer:
isn't -8, right?
Step-by-step explanation:
im not really good at math.
Answer:
10) 9*9*9*9 = 6561
11) 2*2*2 = 8
12) 3*3*3*3*3 = 243
13) 4*4*4 = 64
14) 6*6*6*6*6 = 7776
15) 5*5*5*5 = 625
16) 8.5*8.5*8.5 = 614.125
17) 1.3*1.3 = 1.69
18) 7*7*7*7 = 2401
Used a calculator
Working is a bit of a mess, but vertically she's correct, but she's incorrect horizontally
sqrt (3/10)
sqrt(3)/sqrt(10)
no sqrt in the denominator, so multiply by sqrt(10)/sqrt(1)
sqrt(3) sqrt(10)
-------------------
sqrt(10) sqrt(10)
sqrt(30)/10
Choice D
