By dividing the price per gallon, we see that for every gallon he pays three dollars.
18 Dollars/ 6 Gallons=3 and 21 Dollars/7 Gallons= 3.
So for 8 Gallons, if he pays that same rate of 3 Dollars, he will pay $24.
Please heart & rate answers you find helpful!
I think it would be six tenths because another way to write 6 tenths is 60 hundreths. So, you'd compare 60 hundreths and 45 hundreths, and since 60 is bigger than 40, it would be six tenths....I'm not really good at explaining things, but, I hope this helped.
PEMDAS
since we don't have exponentes or paretnahsees we do
muliplictaion or division whichever comes first (since division is just multiplication of a fraction)
addition or subtraction whichever comes first (since subtraction is adding a negative)
so
multiply/divide
0 times 3=0
9/3=3
now we have
5-0+3
add/subtract
5-0=5
5+3=8
answer is 8
20 tens= 2 tens = 20 ones
