Agroup of friends went to lunch. the bill, before sales tax and tip, was $58.40. a sales tax of 7% was added. the group then tipped 18% on the amount after the sales tax was added. what was the amount, in dollars, of the sales tax?

Rewrite the equation x = 65 - 60p by factoring the side that contains the variable p.

36x2 + 49y2 = 1,764 the foci are located at: a) (-√13, 0) and (√13,0) b) (0, -√13) and (0,√13) c) (-1, 0) and (1, 0)

To diagonalize an nxn matrix a means to find an invertible matrix p and a diagonal matrix d such that a pdp d p ap or [1 3 dh epap 3 let a=-3 -5 -3 3 3 1 step 1: find the eigenvalues of matrix a "2's" step 2: find the corresponding eigenvectors of a step 3: createp from eigenvectors in step 2 step 4 create d with matching eigenvalues.