Find an explicit formula for the geometric sequence

1/2,-4, 32,-256, ...

a (n) = ?

Why does math exist at all

A photograph measures 10 inches by 12 inches. a frame with constant width is placed around the photograph so that the total area of the framed photo is 288 square inches. what is the width of the frame? enter your answer in the box.

Which fraction has the same value as 0.6? 1/6 1/2 3/5 2/3

18x - (8x-7) = 67 what does 'x' equal in this equation?

A container shaped as a rectangular prism can hold 840 wooden cube blocks with edge lengths of 12 ft. What is the volume of the container?

Which of the following is a behavioral adaption of a spider? a. poisonous venom b. web spinning c. eight legs d. body color

A family pays $45 each month for cable tv. The cost increases 7%. How many dollars is the increase? What is the new monthly cost?

The circumference of a large crater is about 219 m. what is the radius of the crater?

A rectangular pen is made with 100 m of fencing in three sides. The fourth is a stone wall. Find the greatest possible area of such an enclosure.

Simplify - 2 (v+5) + 5 (4v-2)