Here is an expression: 3 • 2t 1. Evaluate the expression when t is 1
2. Evaluate the expression when t is 4​

Zoe placed colored blocks on a scale in science class. each block weighed 0.8 ounces. the total weight of all the colored blocks was 12.8 ounces. how many blocks did zoe place on the scale? write and solve an equation to find the answer.

The marriott family bought a new apartment three years ago for $65,000. the apartment is now worth $86,515. assuming a steady rate of growth, what was the yearly rate of appreciation? what is the percent of the yearly rate of appreciation?

Using elimination, what is -4x+2y=-12 4x+8y=-24