Which of the following is an equivalent expression to the given expression using the commutative property of addition? 2(xy)+5x

Question 1 options:

(xy)2+5x

(2x)y+5x

5x+2(xy)

x(2y+5)

What is the benefit of converting measures in a ratio to the same unit

The length of a rectangular plot of land is given by the expression 6x^3y^4. the width of the plot is given by the expression 5x^5y^4z. find an expression to represent the area of the rectangular plot.

If sina is 4/5 then find the value of sin3a . with explanation.