How do I simplify this expression 3 - (7a+1)

What is 12*10³ in another form

What is 448 rounded to the nearest tens?

He altitude of a triangle is increasing at a rate of 3000 centimeters/minute while the area of the triangle is increasing at a rate of 3500 square centimeters/minute.

On a piece of paper, use a protractor to construct a triangle with angle measures of 50° and 70º. What is the measure of the third angle? A 60° B 80° C 100° D 180°

Ralph has a piece of shelving 3 m long. He is going to cut it into 4 equal lengths pieces. how long will each piece be?

What is the gcf of 7x^2, 7x and - 28

A soccer player kicks the ball to a height of 1 meter inside the goal. The equation for the height, h, of the ball at time, t, is h=-4.9t^2-5t+2. Find the time the ball reached the goal.

Bowl contains 8 red balls, and 7 blue balls, and you draw 4 balls. In how many ways can the selection be made so that at least one of each color is draw?

X^2+1/2x+1/16=4/9 Factor the perfect-square trinomial on the left side of the equation. (x + ) ² = 4/9

Which number has the least absolute value? A) 30 B) 10 C) - 20 D) - 40