Find the equarion of a parabola that has a vertex of (-5,-3) and contains the -point (-4,-5)

For each proportion find the unknown number x 1/5/8=×/15

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20

Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?