How to find out the percentage increase and decrease

How many line segments are needed to make a row of six triangles

Is (-4x+9) squared a perfect square

A school has two kindergarten classes. There are 21 children in Ms. Toodle's kindergarten class. Of these, 17 are "pre-readers" children on the verge of reading. There are 19 children in Mr. Grimace's kindergarten class. Of these, 13 are pre-readers.

A $5000 loan was to be repaid with 8% simple annual interest. A total of $5350 was paid. How long was the loan outstanding?

Laura cuts 64 inches of ribbon into two parts and gives her mom one part. Laura's part is 28 inches long. Her mom cuts her ribbon into 6 equal pieces. How long is one of her mom's piees of ribbon

Which of the following expression is equivalent to 6^-7? A 1 / (-6) ^-7 B 1/6^7 C (-6^) - 7 D 1/6^-7

Tell whether the lines for each pair of equations are parallel, perpendicular, or neither for questions 3 and 4. 3) y = - 7/8x - 1 and - 8x + 7y = - 21 4.) y = - 1/4x + 10 and - 2x + 8y = - 21

The pet doctor weighs Marc's dog every year. Last year, the dog lost 3.73 pounds from the previous year. This year, the dog gained 1.47 from last year. Which answer represents the total change in the dog's weight in the last 2 years?

9liters how many in milliliters

Divide. -4 1/3:-2 3/5 1 2/3 1 4/5 2 1/5 2 3/5