The scatter plot shows the average heights of children up to age 5

What is the simplified expression for 6(2(y+x))

Which of the following is an example of a rational number? a. π b. √ 9 c. √ 8 d. 3.8362319

Afire department spend $900 to purchase a new helmets and gloves the amount included a 6% sales tax what was the price of the equipment to the nearest dollar before tax?