How many boys are there in an introductory geology course if 360 students are enrolled and there are five boys to every seven girls?

150

Step-by-step explanation:

360/(5+7)=30

30*5=150

$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)

triangle abc is reflected on the line x=-6.5 then reflected again on the x axis

step-by-step explanation: