Mrs. Aldrich and Mrs. Brown are riding their bikes around a circular path. Mrs. Aldrich completes a lap every 9
minutes. Mrs. Brown makes a lap every 12 minutes. If they
both start at the same place and time and go in the same
direction, how long will it be before they meet again at the
starting point?

Adriveway is 60-feet long by 6-feet wide. the length and width of the driveway will each be increased by the same number of feet. the following expression represents the perimeter of the larger driveway: (x + 60) + (x + 6) + (x + 60) + (x + 6) which expression is equivalent to the expression for the perimeter of the larger driveway? a) 2(x + 66) b) 4x + 33 c) 4(x + 33) d) 4(x + 132)

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Which of the following circles have their centers on the x-axis? check all that apply.