What is the least common denominator (LCD) of the pair of rational expressions? Find the sum
of the rational expressions in simplest form. State any restrictions on the variables.
7x 5
— —
2y x

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.

At the county fair, the baxter family bought 6 hot dogs and 4 juice drinks for $12.90. the farley family bought 3 hot dogs and 4 juice drinks for $8.55. find the price of a hot dog and the price of a juice drink.