Simplify the expression. 7x² + 3 - 5(x² - 4)

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line

Miss henderson wants to build a fence around a rectangular garden in her backyard in the scale drawing the perimeter of the garden is 14 in of the actual length of a b is 20 ft how many feet of fencing what you need

8litres of paint can cover 129.6 m². how much paint is required to paint an area of 243m²?