What is 8.03x10^-8 in Standard form

A woman is 3 times as old as his daughter. After 9 years, the mother will be 2 times as old as the daughter. How old is mother now?

Whats the area of this

Nikki plans to rent a room for her birthday party for 40. The catering charge is 12 per person but there is no charge for Mullins meal since she is the guest of honor.

Smallest four digit number which is a perfect square

Ari watched 1 4 of a movie in the morning, and she watched some more at night. By the end of the day, she still had 1 3 of the movie left to watch. How much of the movie did Ari watch at night?

A 20-foot ladder is leaning against the side of a building. The ladder makes a 60 angle with the building. How far away from the bottom of the building is the foot (bottom) of the ladder?

Divide £250 to ratio 3:6:1

Let f (w) = 2w^3 - 5. Let z = 2. What is f (z) ?

Find an equation of the line that passes through (0,2) and is parallel to y = 1/2x + 6

Expression equivalent to (-3x + 6.3y) - (-5x + 4.2y)