Afigure is formed by a square and a triangle. its total area is 69 m2. the area of the triangle is 5 m2. what is the length of each side of the square? a. 64 m c. 16 m b. 7 m d. 8 m

(a) calculate the molarity of a solution that contains 0.0345 mol nh4cl in 400 ml of solution. (b) how many moles of hno3 are present in 35.0 ml of a 2.20 m solution of nitric acid? (c) how many milliliters of 1.50 m koh solution are needed to supply 0.125 mil of koh ?

This question awards 100 ! i really don’t want to fail i will also mark you !

Mario has $14.35 left in his wallet. he spent $148.43 for tablecloths. then, he spent $92.05 for napkins. how much money did mario have in his wallet to start with?