Evaluate the expressiin when a=6, b=3, and c=2: c(b+a)-a= please help

Which sentence describes why polygon mnop is congruent to polygon jklp? a. polygon jklp maps to polygon mnop through a translation. b. polygon jklp maps to polygon mnop through a rotation. c. polygon jklp maps to polygon mnop through a dilation. d. polygon jklp maps to polygon mnop through a stretch.

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

Which statement justifies why angle ebc measures 90?