Classify: 3x^-4+9x^2+12 a. quartic trinomial
b. quartic polynomial
c. degree 6 trinomial
d. not a polynomial ​

Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!

Given the following linear function sketch the graph of the function and find the domain and range. ƒ(x) = -5x + 4

The cost of a taxi ride includes an initial charge of $2.00. if a 5km ride cost $6.00 and a 10km ride cost $10.00, determine the cost of a 15km ride.