T(n) is the total number of lights in a triangular lighting rig of n rows, as shown. which polynomial function represents t(n + 1)?
t(n)=1/2n^2+1/2n

a. t(n+1)=1/2n^2+3/2n+1
b. t(n+1)=1/2n^2+1/2n+1
c. t(n+1)=1/2n^2+n+1
d. t(n+1)=1/2n^2+1

You eat 8 strawberries and your friend eats 12 strawberries from a bowl. there are 20 strawberries left. which equation and solution give the original number of strawberries?

What expression is equivalent to 1/2(2+3x-6)

Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!