*Two circles are externally tangent at point A. Line t is tangent to the circles at point B and C. Prove that m∠BAC=90°.

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

Plz.yesterday, the snow was 2 feet deep in front of archie’s house. today, the snow depth dropped to 1.6 feet because the day is so warm. what is the percent change in the depth of the snow?

Including 6% sales tax, an inn charges $135.68 per night. find the inns nightly cost