Question

Really need help with this one. Thanks!

1. The equation of the line that separates grasslands and
forests is 7P - 5T = -70

Write an inequality that describes temperatures and
amounts of precipitation that correspond to forested
regions. (Include the line.)

2. The equation of the line that separates grasslands and
deserts is 35P - 3T = 140

Write an inequality that describes temperatures and
amounts of precipitation that correspond to desert
regions. (Include the line.)