Someone plz help me I will give brainlist( I forgot what it’s call) T^T someone plz help

What number should be added to both sides of the equation to complete this square? x^2-10x=7

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?

Sasha drank 8 bottles of water everyday for a week. how many bottles of water did she drink in total?