Why are quadrilaterals referred to as quadrilaterals, and not under the blanket name of "polygons"?

How do I simplify this 5a + 3b - 6a - b

It's time to make the rainforest trail mix. Each serving of trail mix has 1/8 cup chocolate chips, 1/4 cup of cashew nuts and 1/6 cup of coconut flakes. You have to make 24 servings. How many cups of each ingredient will you need?

Coach Joel recorded the amount of time his runners take to run a mile in practice. If, on average, they can run it in under 7 minutes they will go the Disney World race; if they can stay under 8 minutes they will go to the New York City race;

Of the 15 cars in a parking lot, 5 are green, 2 are gold, and the rest are black. What are the odds against the nest car leaving the lot being black?

One of the solutions to x^2-2x-15=0 is x=-3. What is the other solution?

Use the Binomial Theorem to find the binomial expansion of the expression. (d_5) 6

7x-12y=-32 what is the equation of a line parallel to the line shown

Solve this equation for X. 2/3 (x - 7) = - 2 1) y = 5 2/3 2) y = 8 1/3 3) y = 10 4) y = 4 Show work

A car race travles at constant speed. it can complete 4 laps of race course in 48 miuntes. how long dose it take to complete 10 laps?

Write the following proportion 8 is to 64 as is to