If A2 = A, which matrix is matrix A?

Solve the inequality and graph 6j - 7 < 5

Tabby sells clothing at a retail store, and she earns a commission of 6.25% on all items she sells. last week she sold a pair of jeans for $32.50, a skirt for $18.95, and 2 blouses for $14.95 each. what was tabby's total commission? a $4.15 b $5.08 c $81.35 d $348.60

Find the domain of the following expression: 1/(√x)-2