Answer:
D
Step-by-step explanation:
in order for something to be a function, an x value cannot have more than one y value.
Answer:
1/9 of the cube
Step-by-step explanation:
Answer:
option 1
Step-by-step explanation:
÷ 
• leave the first fraction
• change division to multiplication
• turn the second fraction 'upside down'
= × 
( cancel 5 and 10 by 5 )
= 
× 
= 
Price of DVD player ≥ $150
Saved = $80
Amount needed = $150 - $80 = $70
Saving per week = $10
Let x be the number of weeks needed:
80 + 10x ≥ 150
10x ≥ 150 - 80
10x ≥ 70
x ≥ 70 ÷ 10
x ≥ 7
Answer: She needs to save for for at least 7 weeks.
