The relationship between time and the distance remaining on a 3-mile walk for someone walking at a steady rate of 2 miles per hour

If 1 is divided by the sum of y& 4. the result is equal to 3 divided by 4 .find the value of m?

The function ƒ is defined by ƒ(x) = (x + 3)(x + 1). the graph of ƒ in the xy-plane is a parabola. which interval contains the x-coordinate of the vertex of the graph of ƒ?

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.