Abag contains 1p 2p and 5p coins .3/8 of the bag are 1p coins. there are as many 5p coins than 1p coins in the bag . there are 640 cois in total. work out the number of 2p coins in the bag

The system of equations graphed below has how many solutions?

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?

Find the measure of angle y. a. 115° b. 65° c. 43° d. 22°