Write the explicit formula for the arithmetic sequence 27.6, 37.9, 48.2, 58.5, . . . What is term number 39 in this sequence?

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.

What is the value of f(x) = 2.2 for f(-2)?

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0