Lewa's hiking backpack weighs 5 pounds less than 1/2 the weight of alani's hiking backpack. write an expression to describe the weightof lewa's backpack. how many pounds does lewa's backpack weigh if alani's backpack weighs 36 pounds?

Is every rectangle is a parallelogram? true false

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).