If A1=6 and An=An-1+1 then find the value of A4

Which of the following is a proper fraction? a. 9⁄8 b. 5⁄6 c. 7⁄3 d. 4⁄2

The perimeter of a triangle is 69 cm. the first is 5 cm shorter than the second side. the third side is twice as long the first side. find the length of each side

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply