Laura rode her bike for 3 5/8 hours on saturday and for 4 1/2 hours on sunday. which is the best estimate of the time laura spent riding her bike on saturday and sunday ?

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?

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

Me. i can't figure out this question. give an explanation too. .