A pencil costs $3.50 and a pen costs $6.70 . Jessica bought m pens . she also bought 4 fewer pencils than pens . Write an algebraic expression for the total amount she spent.

`if you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain. ''.