Which of the following are equivalent fractions? (a). 9/28 (b). 3/8 (c). 24/64 (d).21/54 (e).15/40

Fiona races bmx around a circular dirt course. if the radius of the course is 70 meters, what is the total distance fiona covers in two laps of the race? a. about 30,772 meters b. about 15,386 meters c. about 879.2 meters d. about 439.6 meters e. about 219.8 meters23 points hurry

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

Scrub a dub toothbrushes are $4.00 each. there is a 10% discount, but there is also a 6% sales tax after the discount is applied. what is the new price after tax? round to the nearest penny