Which gives all the solutions of the equation x-2x + 1 = 0?

A. 1 only
B. -1 and 1
C. O and I
D. -1 only
E. 1 and 2

Find the value of 1715⋅211.though these numbers aren't quite as nice as the ones from the example or the previous part, the procedure is the same, so this is really no more difficult. give the numerator followed by the denominator, separated by a comma.

Acollection of coins has value of 64 cents. there are two more nickels than dimes and three times as many pennies as dimes in this collection. how many of each kind of coin are in the collection?

Which fraction represents the ratio 35 : 42 in simplest form