If the domain of the square root function f(x) is mc024-1.jpg, which statement must be true?

Part a : solve - vp + 40 < 65 for v . part b : solve 7w - 3r = 15 for r show your work!

How do i make someone brainliest? (if you answer me, i might be able to make you brainliest! )

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items