Rafael took piano lessons for 3.5 years. then he took violin lessons for the next 2.8 years.

how many years has rafael taken music lessons?

Find the zeros of the function. write the smaller solution first, and the larger solution second f(x)= (x+6)^2-49

Aplot of land has been surveyed for a new housing development with borders ab, bc, dc, and da. the plot of land is a right trapezoid with a height of 60 feet and an opposite leg length of 65 feet

Are triangles the congruent? write the congruency statement.what is the congruency that proves they are congruent? what is the perimeter of ∆pqr?