How do you solve this what is 0.399 written as a percent

H E L P Factor - 6m + 9. a. - 6 (m - 3) b. - 6 (m + 9) c. - 3 (2 m - 3) d. - 3 (2 m + 3)

If 4 + 6 = 10, does (4 + 6) X 3 = 10 x 3? Why or why not?

The length of a rectangle is 2cm, and the width is 1 cm. Find the length of a diagonal of this rectangle. A. √3cm B. √5cm C. 3 cm D. 25 cm

The coordinates of the vertices of a triangle are (-4,2), (5-1), and (-3,-2). What is the perimeter of the triangle, to the nearest tenth of a unit? A: 13.1 units B: 19.6 units C: 21.7 units D: 38.2 units

Find the least mean square estimate ofxbased on the observationy=y.

The initial price for a horse is $39000. It is discounted by 40% and then by further 14%. Find the price of the item.

How to find the mean of percentages

Suppose f (x) = x^2 and g (x) = (2x) ^2. Which statement best compares te graph of g (x) with the graph of f (x) ? A. The graph of g (x) is horizontally compressed by a factor of 2. B. The graph of g (x) is horizontally stretched by a factor of 2. C.

Solve for x: 5x-2x=7x+2x-24

Lydia buys 5 pounds of apples and 3 pounds of bananas for a total of $8.50. Ari buys 3 pounds of apples and 2 pounds of bananas for a total of $5.25. This system pound of apples, and y is the cost per pound of bananas.