Seiko has 7 coins that add up to $1.10. She has the same number of quarters as dimes. The rest of the coins are nickels. How many of each coin does she have?

In triangle abc, the length of side ab is 12 cm, the length of side bc is 5 cm, and the length of side ca is 9 cm. find the measure of angle a using the law of cosines.

Write a story that matches with the expression 42x-5 pls hurry

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