If a =
-5i and b = -4x, then find the value of a+b in fully simplified form.

Choose the more precise measurement. 26.4 cm or 8.39 cm

Stacey filled her 1/2 cup of measuring cup seven times to have enough flour for a cake recipe how much flour does the cake recipe calls for

You're locked out of your house. the only open window is on the second floor, 25 feet above the ground. there are bushes along the edge of the house, so you will need to place the ladder 10 feet from the house. what length ladder do you need to reach the window?