Work out the equation of the line which has a gradient of 1/2 and passes through the point (4 -2)

In pqr the obtuse angle is 105 and the shorter sides measure 4 and 7 units rounded to the nearest tenth what is the area of triangle pqr

Savannah is painting a striped background for a mural on a wall that is 1515 yards long. she wants a total of 9696 stripes that are all the same width. which calculation should savannah use to decide how wide to make each stripe?

Is the power produced directly proportional to the wind speed, give reasons for your answer?