chelsea and christine are training for the race. Chelsea runs every 3 days. Christine runs every 5 days. how many times could they run together?

Evaluate the expression. (9 + 5)(3 + 2)0

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.

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.