What are the steps of order of operations

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

He amount of carbon-14 present in animal bones t years after the animal's death is given by p(t)equals=upper p 0 e superscript negative 0.00012097 tp0e−0.00012097t. how old is an ivory tusk that has lost 26% of its carbon-14?

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1