3^2 is 9 and if you're question is that times 5, 9 times 5 is 45
Answer:
There is no attatchment
Step-by-step explanation:
Answer:
The required expression for total number of points you earn is
.
Step-by-step explanation:
Consider the provided information.
Let c represents the coin and p represents the points before getting star.
You earn 10 points for every coin you collect in a video game.
......(1)
You find a star that triples your score.

Now the total number of points you earn is(P):

Substitute the value of p from equation 1.


Answer:
x≥72
Step-by-step explanation:
Put into an equation then solve.
x/8≥9
x8 x8
x≥72
Hope that helped!
Answer:
17
Step-by-step explanation:
(x+28y)/x =50
Multiply each side by x
(x+28y)/x *x =50*x
x+28y = 50x
Subtract x
x-x+28y = 50x-x
28y = 49x
Divide by y
28y/y = 49x/y
28 = 49 x/y
Divide by 49
28/49 = x/y
We want to find
(y+28x)/y
Rewriting as
y/y +28 (x/y)
1 + 28(x/y)
Replacing x/y with (28/49)
1 + 28(28/49)
1 +28*28/49
1+784/49
1+16
17