Will mark brainliest
1.10q-25q^2
2.8ax-56a

How do you solving the solution of each system using elimination?

Is the power produced directly proportional to the wind speed, give reasons for your answer?

Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.