Aboat departs port isabelle, texas, traveling to an oil rig. the oil rig is located 9 miles east and 12 miles north of the boat’s departure point. about how many miles is the oil rig from the departure point?
f. 3
g. square root of 63
h. 15
j. 21
k. 225

Suppose that the price p, in dollars, and the number of sales, x, of a certain item follow the equation 4 p plus 4 x plus 2 pxequals56. suppose also that p and x are both functions of time, measured in days. find the rate at which x is changing when xequals2, pequals6, and startfraction dp over dt endfraction equals1.5.