Y varies jointly as x and z.
If y= -40 when x= -2 and z= -1, find y when X=4 and z= -3.

How do i work this problem out using the equation a=pe^rt

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

Kayla has a $500 budget for the school party. she paid $150 for the decorations. food will cost $5.50 per student. what inequality represents the number of students, s, that can attend the party?