What is the explicit formula for this arithmetic sequence? -8, -13,-18, -23, ...
A. a, = -5+ (n-1)(-8)
B. an= -8+ (n - 1)5
C. an = 8 + (n - 1)(-5)
O D. an= -8 + (n - 1)(-5)

This is fractions casey shared a pizza with some friends.they each ate 1 third of the pizza. how many people shared the pizza

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30 ∘c on monday, but decreased at a constant rate in the next 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

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