How many gallons of a 90% antifreeze solution must be mixed with 70 gallons of 30% antifreeze mixture get get a mixture that is 80% antifreeze? You need to add gallons of the 90% antifreeze solution.
(Round to the nearest whole number.)

9/10 divide by -3/15 as a mixed number

Ialready asked this but i never got an answer. will give a high rating and perhaps brainliest. choose the linear inequality that describes the graph. the gray area represents the shaded region. y ≤ –4x – 2 y > –4x – 2 y ≥ –4x – 2 y < 4x – 2

Someone answer asap for ! michele pushes a box d meters across a floor. she uses a force f, in newtons, to push the box. she pushes the box for t seconds. the formula p = fd/t calculates the power, p, in watts, that it takes for michele to complete the task. solve the formula for d.