813-64 r²+r-8 factoring by grouping

how do I solve

What figure has 4 sides & only one pair of parallel lines

System of equations y = 4x + 6 and y = 6x - 8

How many pounds are there in 2 and 1 over 4 tons? (1 ton = 2000 pounds)

What is the product of (3x+2) & (x-7) ?

Which is the better buy? A. 3-yard piece of cotton cloth for $4.41 B. 3-foot piece of cotton cloth for $1.05

If the volume for 3-D pyramid A is 200 cm3 and the volume for 3-D pyramid B is 800 cm3, how many times bigger is the volume of pyramid B than pyramid A? is it 4 or 0.004

What is the percentage chance of a solution 150 g active ingredient in a total of 1000 mL of solution

Three people toss a fair coin and the odd one pays for coffee. if the coins all turn up the same, they are tossed again. find the probability that fewer than 4 tosses are needed.

Camryn ate 3 feet of spaghett each day for a week, how many yards of spaghetti did she eat in all

Oose the situation which would best be modeled by an exponential decay function. A) An island is being eroded away and loses 10% of its beachfront every year. Eliminate B) A player's batting average decreases by.