2r-3.1=1.7 add 3.1
2r=1.7+3.1 divide by 2 to isolate r
2r/2=4.8/2
r=2.4
check
2(2.4)-3.1=1.7
4.8-3.1=1.7
1.7=1.7
4t+3.5=12.5 sub 3.5
4t=12.5-3.5 divide by 4
4t/4=9/4
t=9/4
check
4(9/4)+3.5=12.5
9+3.5=12.5
12.5=12.5
8m-5.5=10.1 add 5.5
8m=10.1+5.5 divide by 8
8m/8=15.6/8
m=1.95
check
8(1.95)-5.5=10.1
15.6-5.5=10.1
10.1=10.1
Answer:
6 Gallons per min
Step-by-step explanation
Unit rate is a fraction that has a one in the denominator
so you have 42/7 = n/1 so to make 7 a 1 , we divide by 7 . We do the same thing on top 42 divided by 7 is 6.
We compute the productivity percentage change of each category using the formula:

Productivity percentage change for each category
1) Units produced:

2) Last (hours)

3) Resin (pounded)

4) Capital invested ($)

5) Energy (BTU)

2) Improvement for labour hours
From the previous computations, we see that the percentage change of the category "Last (hours)" has a negative value of -8.33%, which means that this value decreased by 8.33% with respect to the last year.
Answer
1) Productivity percentage change for each category
0. Units produced: ,0%
,
1. Last (hours): , -8.33%
,
2. Resin (pounded):, -10%
,
3. Capital invested ($): ,10%
,
4. Energy (BTU): ,-5%
2) Improvement for labour hours
The percentage change of the category "Last (hours)" has a negative value of -8.33%, which means that this value decreased by 8.33% with respect to the last year.
The answer is. 0.125 I Think