The simple interest $ Interest, on a sum of money , $P after T years at R% is given by the formula interest = PRT ÷100 a) make t subject of the formula
b) find t if interest = 51 , P =340 and R=2 1/2​

A20? -foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 19 feet from the base of the building. how high up the wall does the ladder? reach?

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212

Factor and solve to find roots x squared -x - 90 =0