What is the value of x in the solution to this system of equations 7x-6y=0. y=-1/2x-2

Aman steps out of a plane at a height of 4,000m above the ground falls 2,000m very quickly and then opens his parachute and slowly falls the remaining 2000m to the ground what height above the ground would be the best choice for a reference point

The deck that kenneth is building is in the shape of a parallelogram abcd the measure of angle c is one third the measure of angle b find the measure of each angle of the deck

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth