Mr. parker paid $12 for a bus ride from midtown new york to la guardia airport and $35.50 for a taxi ride from boston's airport to downtown boston. if he buys a coach ticket($143), how much does the trip from midtown new york to downtown boston cost mr. parker?

Solve with work adding cheese to a mcdonalds quarter pounder increases the fat content from 21g to 30g. what is the percent of change ?

Find the volume of the described solid.the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x.a) 441b) 147c) 864d) 882

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.