
Get x to one side
So minus 90 from each side

-90÷-3=30
Answer: x=30
Where’s the picture, sugar cube?
1. D
2. D
I don't know the answer to number 3 sorry.
Answer:
The system that can be used is:


Step-by-step explanation:
We have that:
x is the price of a package of sugar cookies, y is the price of a package of oatmeal cookies.
Shaikha sold 10 packages of sugar cookies and 2 packages of oatmeal cookies for $56.
This means that:

Khalid sold 9 packages of sugar cookies and 3 packages of oatmeal cookies for $60.
This means that 
System that can be used:
The system that can be used is:


Answer:
height of the building is 12.99 feet.
Step-by-step explanation:
given, try to analyse:
- ladder 15 feet long.
- 60 degree angle to the ground.
the height of the building is opposite to the angle 60° and given hypotenuse, the ladder of 15 feet long.
using sine rule:



Therefore the height of the building is 12.99 feet.