Round 18,300,000 to the nearest tenth

18,300,000

Step-by-step explanation:

the problem here is that there is no tenth, hundreth, or ten thousandth place

they try to confuse you so all you have to do is round the closest number to the tenth place which is 3 and 0 can't do anything so it stays the same.

$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)

12

step-by-step explanation:

12 + 5 = 17

12x2=24

24-7=17