What was the difference between the 52-week high and 52-Week low price for one share of PetroChina Company Ltd?

James adds two numbers a + b. sally adds the same two numbers but reverse the order b + a what property of addition assures us that james and sally will get the same sum

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

Aprojectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 704t. after how many seconds does the projectile take to reach its maximum height?