Which operations would create an equivalent system of equations with opposite like terms?
3x-3y = 3
4x+5y = 13
the first equation can be multiplied by 5 and the second equation by 3.
the first equation can be multiplied by -4 and the second equation by-3.
the first equation can be multiplied by 4 and the second equation by -4.
the first equation can be multiplied by 3 and the second equation by 5.

Which function is increasing? o a. f(x)=(1/15)* o b. f(x)= (0.5)* o c. f(x)=(1/5)* o d. f(x) = 5*

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)