Keisha estimates 259 + 372 by rounding each number to the nearest 10. What is Keisha's estimate of the sum?

How many terms are in the expression 5m2 - mn + 4n + 7?

Tom earns £9.20 per hour he works for 24 hours each week and 48 weeks each year. He pays tax if he earns more than £10 000 per year. does Tom pay tax

What is square root of 21x?

Boris is a web developer. His annual gross salary is $45,000. From this, he must pay social security (calculated as 10% of his gross pay) plus income tax (on the gross pay before the social security deduction).

A bag contains 5 blue marbles, 2 black marbles, and 3 red marbles. A marble is randomly drawn from the bag. The probability of not drawing a black marble is. The probability of drawing a red marble is. NextReset

How do I factor quadratics?

A bag contains 120 marbles. Some red and the rest are black. There are 19 red marbles for every black marble how many red marbles are In the bag explain your reasoning

Debbieis one year older than dave. James is twice as old as dave. Joelle is twice as old as debbie. Altogether their ages total 33. Find each persons age. (let x = daves age)

The smallest video camera in the world is 0.99 mm in diameter. Is the diameter of the video camera less than or great than 0.1 mm

What is 0.6 In a fraction