Asequence has an initial value of 10 and each term is twice the previous. which function models this sequence?
1. a(n)=10(2)"n
2. a(n)=10(2)n-1
3. a(n)=10+2n
4. a(n)=10+2(n-1)

Teams of 4 are competing in a 1/4 mile relay race. each runner must run the same exact distance. what is the distance each teammate runs?

Maren is buying carpet for her rectangular living room. the room is 4.8 yards wide and 5.2 yards long. how much carpet does she need to buy? enter your answer as a decimal in the box. yd2

The length of a rectangle plus its width is 24 cm. the area is 143 square cm. what are the length and width of the rectangle?