Mary is 3 years older than Sarah. Winifred is twice as old as Mary. Altogether their ages total 89. How old is Sarah? 24 years old
22 years old
18 years old
None of these choices are correct.

Which graph represents the following piecewise defined function?

Factor -8x3-2x2-12x-3 by grouping what is the resulting expression?

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?