Which one of the following statements expresses a true proportion? a. 2: 1 = 1: 2 b. 7: 9 = 8: 9 c. 54: 9 = 6: 3 d. 3: 4 = 9: 12

The radius of the circle is 4 cm and the measure of the central angle is 90° the area of the sector with a central angle measuring 90° and radius of length 4 cm is vt cm the triangle in the sector is 4 cm the area of the triangle is v/cm² the area of the segment of the circle is (471 - ) cm?

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.

The holiday party will cost $160 if 8 people attend.if there are 40 people who attend the party, how much will the holiday party cost