Solve: 0.1m−1.3m=−2.1−2.7.

4

Step-by-step explanation:

Simplify what you can which is 0.1m-1.3m

you end up getting -1.2m

Now do the other side of the equation which is  2.1-2.7 which is -4.8

Divide -4.8 by -1.2 to get m=4

m=4

Step-by-step explanation:

add like terms

subtract

multiply both sides by 10

divide -12 on both sides

m=4

$25

step-by-step explanation:

25 - 4.50 = 20.5

20.5 / 2 = 10.25

10.25 + 10 = 20.25

20.25 - 12.50 = 7.75

therefore the answer is $25 as shown as the first number.