1#find the balance on a deposit of $15,600 that earns 10% compounded semiannually for 3 years.

a.$20,905

b.$4,680

c.$2,076

d.$3,636

2#find the balance on a deposit of $1,500 that earns 9% interest compounded annually for 3 years.

a.$1,905

b.$1,942

c.$1,953

d.$405

3#find the balance on a deposit of $900 that earns 8% simple interest for 3 months.

a.$918

b.$1,133

c.$216

d.$1,116

4#explain the difference between simple interest and compound interest.

Amira is painting a rectangular banner 2 1/4 yards wide. the banner will have a blue background. amira has enough paint to cover 1 1/2 square yards of the wall. the school colors are blue and yellow, so amira wants to add yellow rectangles on the left and right sides of the blue rectangle. the yellow rectangles will each be 3/4 yards wide and the same height as the blue rectangle. what will be the total area of the two yellow rectangles?

"curse these trig-loving pirates! " devora mutters as she looks at the map. then, after thinking for a moment, she walks back to the entrance of the secret cave, measuring 48 meters along the way. after performing a calculation, devora walks back to the empty treasure, faces the entrance, and turns a certain number of degrees to her left before walking 89 meters to the treasure. supposing that the angle at the cave entrance is acute and that devora's calculations were correct, how many degrees did she turn?

Norder to get a certain shade of blue paint, a mixer must have 5 parts white paint to 3 parts blue. if 4 gallons of paint must be mixed, how many gallons of white paint must be used?