In the past hour. ace window factory made 13
windows. the factory operates 20 hours per day, 1
days per week. based on this information, which is
the best prediction for the number of windows the
factory will make in one week?
a. 300 windows
b. 1.500 windows
c2,100 windows
d. 3.000 windows

A. 300 windows

Step-by-step explanation:

13 windows per hour 20 hours per day 1 day per week

13 x 20 x 1 = 260. 300 is the closest to 260

7

step-by-step explanation:

the answer would be 7

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional