Well I solved it and This is what i got
Answer:
Step-by-step explanation:
3.14*10*(10+24^2+10^2 squared)
31.4*5870 squared
31.4*76.62
240.5554
I don't know if this is right
Answer:
16x²+6x+3
Step-by-step explanation:
x²+6x+3(5x²-4)+15
x²+6x+15x²-12 +15
16x²+6x+3
3/4. Keep change flip. 1/2 x 3/2 = 3/4
Aidan has put 21 hours of work. To simplify it, Harry worked 7 hours and Aidan worked 7 x 3 times which equates to 21 hours.