A colony of 70,000 bacteria doubles in size every two hours what will the population be four hours from now

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4

Multiply and simplify. 2x2y3z2 · 4xy4x2 how to do?

Susan is paying $0.30 per $100 on her $483,000 home in homeowners insurance annually. if her annual homeowners insurance premium is divided into twelve equal monthly installments to be included on each of her monthly mortgage payments of $2,128.00, what is her total monthly payment?