Twice the difference of a number of 9

Choose the product. -7p^3 (4p^2 + 3p - 1) A) - 28p5 - 21p4 + 7p3 B) 28p6 + 21p3 - 7p C) 21p3 + 8p2 + 3p4 - 8p D) - 21p5 + 8p4 - 3p3

6³ + 5 (8 + 1/5). Now I'm going to ramble until I get 20 characters so I can post this, bluh.

A 4-bedroom, 4-bath 4,875 square feet house was listed at $445,000. Andreas, the seller, accepted an offer that was 95% of the listing price. What price per square foot did he get for the house

Isaac purchased a house for $109,400.00. Every year, Isaac makes improvements so that the value of the house goes up by 3%.

Given that y=14/√ (1+6x^3), find dy/dx and use it to find an approximate change in y when x changes from 2 to 2.003. Hence, find an approximate value of y when x = 2.003

Can a TI-84 Plus simplify radicals?

Which math expression represents the phrase? 9 times the sum of a number and 7 a. 9 · n+7 b. 9 · (n+7) c. 9 · (n - 7) d. 9 · (n · 7)

Two triangles have the same heights. One triangle has a base length that is twice the base length of the other triangle. Are the base lengths and the areas of the two triangles proportional?

I need "3 dimensional figures that have a volume of 12, and a volume of 80. I need the volume used to figure out the total volume

Item 2 A box contains 20 yellow marbles and 12 marbles to red marbles? Yellow marbles and 12 red marbles. What is the ratio of yellow A. 3:5 B. 3:8 C. 5:3 D. 5:8