I think the answer is .4m^7n^8
Uhh I don’t know how to give it a clear explanation but all I did was multiply them
-0.8•-0.5= .4
M^2•m^5=m^7
n•n^7=n^8
Hope this helps some.
1)

Each marker cost 59 cents
2)

The old Big Almond Bag weighed 15 ounces. The new Big Almond Bag weighs 18 ounces.
C I believe if I am wrong tell me whats the answer~
Answer:
it's -7 1/3 because since the equation is all negative you would just simply add the -5 and -2 1/3
It bisects so DE=EF
DE=5y
EF=13y-8
so
5y=13y-8
minus 13y both sides
-8y=-8
divide both sides by -8
y=1
DE=5y=5(1)=5
DE=EF=5
DF=DE+EF=5+5=10
DE=5
EF=5
DF=10