Allie worked for 1/2 hour on saturday and 2/3 hour on sunday. write the pair as a pair of fractions using common denominators. explain your reasoning.

For each polynomial, determine the degree and write the polynomial in descending order. a. –4x^2 – 12 + 11x^4 b. 2x^5 + 14 – 3x^4 + 7x + 3x^3

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.

Mikes car gets an average of 28 mpg. there are 12 gallons of fuel in mikes car when he starts his trip of 140 miles. about how many gallons are left at the end of his trip?