dirk sold 7 more than 2 times as many gym memberships this month than last month. the month he sold 43 memberships. how many memberships did he sell last month?

How to find the common difference of an arithmetic sequence?

Find the value of c when a=1 and b=7? I have this on Kumon and can't figure it out!

The length of a shadow of the building is 36m. The length of the pole, which is perpendicular to the ground, is 1.9m. The length of the pole's shadow is 1.52m. What is the height of the building?

Round 689 to the nearest ten

Check the answer that best describes the relationship between f (x) and x. (for example if f (x) is θ (x) θ (x) check that as your answer and not o (x) o (x) or ω (x) ω (x) even though these are true also in this case.)

Greatest common factor of 8x and 40?

A small factory can produce 245 sofas each day or 315 overstuffed chairs per day. the workers produced 8,820 pieces of furniture to fill an order. if they built sofas for 18 days, how many days of production were needed to build the chairs?

At the beginning of mathematics class, Mrs. Reno gives a warm-up problem. She says, "I am think of a number such that 6 less than the product of 7 and this number is 85." Which number is she thinking of?

Louise is baking cakes to raise money for her track team. The total cost of all of the ingredients for her cakes is $62 She will sell each cake for $10 Write an equation that describes the relationship between the number of cakes Cindy sells, 2, and

Interest earned $70 at 3% for 12 years