Answer:
The which spends on the piano is( 50 minutes )
The which spends on the guitar is( 40 minutes )
Step-by-step explanation:
The steps of the solution in the above photo
I hope that is useful for you :)
Answer:
-2
Step-by-step explanation:
-(4e+7)=1
-4e-7=1
-4e=1+7
-4e=8 divided both side by -4
e=-2
B) c - 1/5c - 40 = 120
c- (original cost) - 1/5c (sale) - 40(coupon)= 120(final cost)
Hope that helps! :)