14) Mary and Sue go to the store and buy packs of calculators and rulers. Mary bought 4 calculators and 5 rulers for $: Sue bought 3 calculators and 2 rulers for $247. What is the price of one calculator and one ruler? How do I solve? Please show steps!

What is a cordon and where is it found

Nasa scientists must work together to make sure that everything is correct and accounted for when launching a shuttle. besides a physicist, what other type of scientist would be in making sure that the shuttle has the appropriate type and amount of fuel to reach its destination?

What do all macromolecules have in common with each other? oa. they all are formed from the same elements.ob. they all have major roles in cell membranesoc. they all act as catalysts in the body.od. they all have peptide bonds between carbon atoms.