The circumference of the bike tire above is 83.524 inches. what is the radius of the bike tire? (use 3.14 for .)
262.27 in
b.
26.6 in
c.
13.3 in
d.
41.76 in

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of

Which of the following parabolas opens up?

A10 inch cookie cake is divided into 8 slices. what is the area of 3 slices