The sum of a two-digit number is 12. the number formed by interchanging the digits is 54 more than the original number. what is the original number

You are remodeling your kitchen. you’ve contacted two tiling companies who gladly told you how long it took their workers to tile of a similar size jim completed half the floor in 8 hours. pete completed half of the other floor in 7 hours. if pete can lay 20 more tiles per hour than jim, at what rate can jim lay tiles

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

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