Please help ill give brainliest Solve the following order of operations problems. PEMDAS. Parentheses Exponents Multiply/Divide Add/Subtract

(2.99x3) + (7.15x3) + 2.50

15 - 2 to the 3rd power + 20 =

5 to the 2nd power x (5 + 5) - 20 =

Liz is shipping a package to her friend.the maximum weight of a medium flat-rate box is 20 pounds,including the box which weighs 6 ounces.write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.

Aline passes through 3,7 and 6,9 what equation represents the line

How do i find the missing angle measure in a polygon