4. Simplify: - 2xy/507x1473

Do you think the sum of a negative number and a positive number will always be negative?

The product of (1/2+3/4) (1/2-3/4) (i) and divided by (2-3i) is (multiplying complex numbers) a) 1/8 + 3i/16 b) 26/16 - 39i/16 c) - 10/208 - 15i/208

Area of triangle 9.8cm 3.6cm 4.3cm

Which relation is a function? A.{-2, 10), (-6, 10), (-2, 3) } B.{ (0, 3), (0, 9), (12, - 4) } C.{ (-5, 1), (4, 9), (6, 10) } D.{ (5, 5), (5, 9), (5, 15) }

Sonny Jurgensen set a record for the most passes completed in a football season. He completed 288 passes in 508 attempts. Find the ratio of completed passes to attempts.

32 mystery books and 56 biography books, each shelf has the same number of books on them, how many books go on each shelf and how many shelves for each type of book

Write the out the equation - 52 times the difference between a number and 97 is equal to the number plus 39

A pair of jeans is on sale for 25% off the original price. Which expression represents the sale price? If the original price of the jeans is $40, evaluate the expression to find the sale price.

What is 62 percent of 25?

Mrs Brown gets her class of 21 children to stand in a circle. She chooses the child in the first position to give one of 21 Valentine's cards anti-clockwise to the person next to their neighbour.