Which of the following polynomial equations are valid identities?

a. (a + b) (2a + 1) = a (2a + 2b + 1)

b. (n+2) 2 - n2 = 4 (n+1)

only a?

Only b?

Both?

Neither?

and explain why

What is y=1/2x + 2 y = - x + 5 using subsitution

A city planner has an 8/9 acre plot of land to develop for the city. She will use the land to make separate sections that each have an area of 1/4 acre of gardens.

What is bigger 3/4 ir 11/16

What is the coefficient in this expression? 5-4.7-2x+5/8 -4.7 -2 5/8 5

Sages team needs to buy at least 75 cans, but they only have $50 to spend. Use the information sages collected to find another option. Packages: 12 cans for $8, packages:10 cans for $8, and packages 8 cans for $4

18. * Gillway Community College, 43 out of 381 students earned honors. At Montessa Valley Community College, 17 out of 108 students earned honors.

Using the distributive property of multiplication for 12: (8+7) we get

A bag contains five green gumdrops and six red gumdrops. if kim pulls a green gumdrop out of the bag and eats it, what is the probability that the next gumdrop she pulls out will be red? (5/11) (1/2) (6/11) (3/5)

If tam walks 2 miles to school during gym and runs 3 times as fast as Dante how many miles would Dante go if he ran 1 mile

YOur dinner at a resturant costs $13.65 after you use a coupon for a 25% discount. You leave a tip for $3.00. HOw much was your dinner before the discount?