A professora perguntou a seus alunos: "quantos anos voces acham que eu tenho?" ana respondeu 22, beatriz,25 e celina,30. A professora disse: "uma de voces errou minha idade em 2 anos , outra errou em 3 anos e outra em 5 anos".Qual é a idade da professora?

Find the missing factor. write your answer inexponential form.9^2=9^4×

The bottom of ignacio's desktop is 74.5cm from the floor. ignacios sits in his adjustable chair, and the tops of his legs are 49.3cm from the floor. each clockwise rotation of the knob on the chair raises ignacio's legs by 4.8cm. write an inequality to determine the number of clockwise rotations, r, ignacio could make with the knob without his legs touching the desk.

You draw a card at random from a deck that contains 33 black cards and 77 red cards.