Can the common difference in an arithmetic sequence be negative

Mr. Traynor's class is taking a field trip to the zoo. The trip will cost $26 for each student. There are 22 students in her class. What is a good estimate for the cost of the students' field trip?

What is the converse of "if it is raining then we will not go the the beach

Use the expression to solve the problems. P (1 + r) t The amount that results when $4,000 is compounded at 6% annually over seven years. The interest earned in this case.

Which measurement would be least likely to be written in scientific notation : # of stars in a galaxy, # of grains of sand on a beach, speed of a car, or population of a country?

How many thousands are in 440,000

Twenty milligrams of the drug lincomycin is to be given for each kilogram of a person's weight. The drug is to be mixed with 250 cc of a normal saline solution, and the mixture is to be administered intravenously over a 1 hour period.

In the diagram below, QRS is an equilateral triangle and RT QS.

What is the solution of this system of linear equations? y=2x-3 2x=y-3 a. infinitely many solutions b. (0, - 3) c. (0,0) d. no solution

In calm waters, the oil spilling from the ruptured hull of a grounded tanker spreads in all directions.

When does a barbershop quartet have 16 legs?