Elena and Jada are 12 miles apart on a path when they start moving toward each other. Elena runs at a constant speed of 4 miles per hour, and Jada walks at a constant speed of 2 miles per hour. How long does it take until Elena and Jada meet?

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled

God's gym charges a sign-up fee of $100 plus $30 per month. write an expression to represent how much someone would pay for a membership.

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %