So as you can see there are two clear rates at which the plant is growing or will grow in the future, wehave Plant A that grows at 3 cm a month so we multiply that by the number of months, and the plant B and we just have to add to the current height thefuture height whihc will be calculater by multiplying the rate by the number of months:
From 2.56 to 3.18; 3.18-2.56=0.62 increased so if 2.56 represented 100% 0.62 represents ? % cross multiply ?%= 0.62·100/2.56=24.21875 which rounded to the nearest whole is 24% Answer is B).
