Answer:
First, I go by finding <em>x</em><em> </em>and <em>r</em>.
After that, put the numbers (ie. x= # and r=#) into the equations. Check it by finding L.H.S and R.H.S. (ie. left hand side and right hand side)
If you are still confused, comment down and I'll try to provide better explanation!
Answer:
The shirt cost $10 since 20% of 10 is 2 resulting in the $8 final cost
Step-by-step explanation:
Multiply 
A 170 pound astronaut would weigh 68 pounds on mars.
Hope this helps :)
Answer:
- 10b² + 12b - 16
Step-by-step explanation:
b² + 8b - 9 - (11b² - 4b + 7) ← distribute by - 1
= b² + 8b - 9 - 11b² + 4b - 7 ← collect like terms
= (b² - 11b²) + (8b + 4b) + (- 9 - 7)
= - 10b² + 12b - 16
Answer:
Step-by-step explanation:
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