How can I solve a problem using quadratic formula?

Hannah has an offer from a credit card issuer for 0% APR for the first 30 days and 12.22% APR afterwards compounded daily. What effective interest rate is Hannah being offered?

Expand 6 ∑ 3n n=2 a. 2+3+4+5+6 b. 3+6+9+12+15 c. 6+9+12+15+18 d. 3+6+9+12+15+18

Solve x-6y = 11 for y

For a certain font, the scale factor is 1.33 and one of the scale sizes is 2.353. What is the next smaller scale size? answer as a decimal. Round your final answer to the thousandth.

Sherri pays $4.50 for trading cards. What is the cost of each card?

Round both numbers to the nearest whole number and estimate the result 6.8*7.9, 7.6*7.5, 0.9*44, 0.2*44

The sum of a 3-digit number and a 1-digit number is 217. the product of the numbers is 642. if one number is between 200 and 225, what are the numbers

Counting codes. How many 3-digit telephone area codes are possible if the first digit cannot be 0 or 1?

The equation P=28+2.54w models the relation between the amount of Randy's monthly water bill payment, P, in dollars, and the number of units of water, w, used. Interpret the P-intercept of the equation.

A roller coaster ride holds a total of 36 passengers. The ratio of males to females on the ride is 5 : 4. Let xx represent the number of males on the ride. Let yy represent the number of females on the ride.