Hi there
APR=(1+r/12)^(12)-1
APR=((1+0.18÷12)^(12)−1)×100
APR=19.6%
Hope it helps
Sense each triangle have 60 any unique triangle will work
The 2 from the a and the 4 will reduce to 1/2 and the a's from a^2 and 4a will reduce to a/1 so your answer would be (ab^2)/2
Brainliest is always appreciated !
