Please help Parallelogram PQRS has diagonals PR and SQ that intersect at T. Find the values of x and y. PT=y, TR=3x+1, QT=3y, TS=4x+13 (1 point) A- x=3, y=7 B- x=2, y=6 C- x=3, y=6 D- x=2, y=7

(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 ?

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Eli won $200 in a spelling contest. his mother opened a savings account for him so he could save for a laptop computer. if the bank offers a simple annual interest rate of 4%, how much interest will eli earn over 3 years?