If 45% of (A - B) is equal to 3/10 of (A+ B), then what percent of A is B?

Find an equation of the horizontal line containing the point (3, 2).

Find an equation for the line with x-intercept = 2, y-intercept = -1.

Choose the equation of a circle with radius 6 and center (3, -5).

The side of a square is increased by 10%, by what percent will the area be increased?

In a class, the number of boys is 35% more than that of the girls. The total number of students in the class is 94. If 6 more boys are admitted to the class, the ratio of the number of boys to that of the girls is-

A man can row 12 kmph in still water. It takes him three times as long to row up as to row down the river. Find the rate of the stream:

Which is the area of this triangle? (Base = 5x, Height = 8x)

Find the domain of f(x) = 1/(x + 3).

The displacement of a particle S at time t is modeled by S = 10t - t². Find the displacement after 2 seconds.