4.
A cashier at the grocery store rung up 2 customers in 8
minutes. At this rate, how many customers can he ring up in
30 minutes?
a) 16 customers
c) 7.5 customers
b) 10.5 customers
d) 14 customers

c.) 7.5

Step-by-step explanation:

There is a part-to-whole relationship here.

2 customers : 8 minutes= ? customers : 30 minutes

                                         or...

2/8=x/30

Cross multiply:

8x=60

Divided both sides by 8:

x=60/8=7.5

I hope this helps!

144.50

step-by-step explanation:

21.5 x 13.4=288.10 divide by 2

c

step-by-step explanation: