What is 15% of a circlee in degrees

Can someone me with my hwplz(only the circled ones)

Mustafa contributes 11% of his $67,200 annual salary to his 401k plan. what is his pretax income

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =