the point (1,3) is one of the turning points of the curve y =ax^3 +bx + 1. what is an expression for the gradient of the curve .​

Emily is entering a bicycle race for charity. her mother pledges $0.90 for every 0.75 mile she bikes. if emily bikes 18 miles, how much will her mother donate?

If there are 3.281 feet in 1 meter, how many inches are in one centimeter

On the first of each month sasha runs a 5k race she keeps track of her times to track her progress her time in minutes is recorded in the table