(2x+5)/(x+7)=1/3+(x-11)/(x+7) What is the domain for this equation?

Which graph represents the following piecewise defined function?

Simplify the expression. -2/5(10+15m-20n)

Olive's solar powered scooter travels at a rate of 30 miles per hour. what equation can she use to calculate her distance with relation to the time she traveled? h=hours m=miles 1. h=m+30 2. m=30h 3. m=h+30 4. h=30m