In 2010 josie and salvador each worked an eight hour day for five days each week. how many weeks did it take josie to earn 1000 more than salvador

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

If point cis between points a and b, then ac + — = ab

The volume of a spherical hot air balloon v(r) = 4 3 ? r3 changes as its radius changes. the radius is a function of time given by r(t) = 3t. find the instantaneous rate of change of the volume with respect to t at t = 2.