There are four students in each small reading group. If there are 24 students in all, How many reading groups are there?

There are 6 reading groups

If there are 24 students altogether, and 4 students have to be in a group, all you need to do is divide 24 by 4 to find the amount of groups.

=6 reading groups.

b.) 160 miles on a 5 gallons car

step-by-step explanation:

240/10=24 miles/gallon

160/5=32 miles/gallon

30/1=30 miles/gallon

168/6= 28 miles/gallon

32 miles/gallon is the most amount, so this is the best.

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)