HURRY!!
Solve the following system of equations by substitution
x-4y=-1
3x+5y = 31

A=1/2h(b1+b2) is the formula for the area of a a trapezoid b regular polygon c triangle d rhombus or kite

James wants to promote his band on the internet. site a offers website hosting for $4.95 per month with a $49.95 startup fee. site b offers website hosting for $9.95 per month with no startup fee. for how many months would james need to keep the website for site a to be a better choice than site b? will mark the

Abox holds 500 paperclips. after a week on the teacher's desk 239 paperclips remained. how many paperclips were used?