−4x+3y
3x−9y


=2
=3


Is
(
4
,
1
)
(4,1)left parenthesis, 4, comma, 1, right parenthesis a solution of the system?
Choose 1

Aball is dropped from a height of 10m above the ground. it bounce to 90% of its previous height on each bounce. what is the approximate height that the ball bounce to the fourth bounce?

Sally deposited money into a savings account paying 4% simple interest per year.the first year,she earn $75 in interest.how much interest will she earn during the following year?

Can someone, me with this.i really need with this