Please help, due in 20 minutes Write the next explicit form of this sequence, given a1 = 20 and r= 0.5 (12) and find n=15.

Student price tickets to a movie are $1 and non student tickets are $2 . 350 tickets are sold and the total amount made is $450. there were 250 student tickets sold . true or false .

Asphere has a diameter of 10 in. what is the volume of the sphere?

When keisha installed a fence along the 200 foot perimeter of her rectangular back yard, she left an opening for a gate.in the diagram below, she used x to represent the length in feet of the gate? what is the value? a. 10 b. 20 c. 25 d. 30