What is the value of - 6a-3b2 for a=-2 and b = 4

Five independent flips of a fair coin are made. find the probability that (a) the first three flips are the same; (b) either the first three flips are the same, or the last three flips are the same;

How many pounds are there in an ounce?

There are 8 students on the bus five of the students are boys what fraction of the students are boys

Mary lives 2.1 miles north of her school. Her classmate Roger lives 1.3 miles west of their school. What is the distance between Mary and Roger's houses? Round your answer to the nearest tenth of a mile.

4.717 is 53% of what number 11.2 25.0001 8.9 48.283

18 necklaces made in 3 hours

If you got $15 dollars everyday and you have $116 how long will it take to get $250

What is 3 (3x) + 2 (5) = 60x - 500

Write each fraction in simplest form. If the fraction is already in simplest form, write simplified 3/36 25/30

Which of the objects shown below could be sliced to create square cross-sections? cone sphere cylinder cube triangular prism right pyramid