Three of the angles of a quadrilateral are 148 degrees 104 degrees and 36 degrees what is the size of the 4th angle

Taking algebra two apex courses and need with these questions

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.

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16