Asap!
what is the length of the indicated arc?
a) 2 pi
b) 4 pi
c) 9 pi
d) 18 pi
e) none of the above

What aspects of lines have to be diffrent

This is so harddd! solve. 1 + 1 = solve 4 + 4 = solve 3 x 3

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?