Suppose students' exam scores are normally distributed with mean y = 65 and standard deviation o 10
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What proportion of the students taking the test score between 35 and 75?

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

X+ y = 5 ; x - y =3 solve using linear combination