(8.64 times 10 Superscript 20 Baseline) minus (7.83 times 10 Superscript 20 Baseline) 8.1 times 10 Superscript 19
0.81 times 10 Superscript 20
8.1 times 10 Superscript 21
0.81 times 10 Superscript 40
can somebody help

4+n=5

step-by-step explanation:

this is because the four is four hours and the n represents the 1 extra hour over the weekend.

b= i'm srry i don't know that one.

4+n=5 n=1 because if vernon plays 5 hours a week then 4+1=5 hours.

hope this : )

do i do it on a graph?

step-by-step explanation:

b.   e = 7.5h

hope this , lovely!