Walker invests $4,200 in a savings account earning 8% interest compounded yearly. What will the account balance be after 7 years?

Trigonometry hellllllpppppppp asap

Kathy spent 5/8 of her money on books and another 1/6 of her money on stationeries.what fraction of kathy’s money was left?

Mr. vector door is buying two new cowboy hats all together the hats cost $75.12 the second heart cost twice as much as the first hat what is the price of the more expensive at round to the nearest hundredth