Simplify the expression.
- 2.3f + 0.9f - 15-9

-1.4f - 24

Step-by-step explanation:

First combine like terms

-2.3f + 0.9f - 15 - 9

-1.4f              -24

So, simplified it is

-1.4f - 24

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)