Dave has $11 to spend on a $4 book and two birthday cards (c) for his friends. how much can he spend on each card if he buys the same card for each friend?

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

What number should be added to both sides of the equation to complete this square? x^2-10x=7

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?