Points a and b are represented in this drawing to a scale 1 cm : 5 km. work out the actual distance between them

Janets dinner costs 7.50. if she wants to leave a 10% tip how mich extra should she leave

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

Look at arnold's attempt to solve the equation for b: 3b = 12 b = 3 · 12 b = 36 describe the mistake that arnold made.