What is the sum of the polynomials? (9x4−13x3−x−7)+(7x3−2x+1) a.) −6x^6+9x^4−3x^2−6 b.)−6x^6+9x^4−x−8 c.)9x^4−6x^3−x−8 d.)9x^4−6x^3−3x−6

Football player weighed 170 2/3 pounds in may. during the summer he gained 25 5/12 pounds. during the first week of fall practice he lost 10 1/4 pounds and during the second week he lost another 3 1/2 ponds. how much does he weigh at this point? a.182 1/3ib b.181 1/2ib c.182 5/12ib d.183 2/3ib

Atriangle includes one angle that 72º. which pair could be the measures of the other two angles of the triangle? a. 9º, 9º b. 26º, 46º c. 53º, 55º d. 72º, 108º

How can writing phrases as algebraic expressions you solve problems?