3. 1. The 20 students on the math team want to raise $490 to buy practice books.
They have already raised $220. If each student raises the same amount, how
much more money must each student raise?

Each student must raise $13.50

Step-by-step explanation:

490-220=270 left to raise

270÷20=13.50

it should be a and d. lmk if i'm wrong xd

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²