Let's say the price of the red tube is x, and the price of the blue tube is x + 7. Then the total cost 25 is the price of the red tube plus that of the blue tube, or x + x + 7.

The red tube cost £9, and the blue tube cost <span>£16.</span>
Answer:
y=4
Step-by-step explanation:
Answer:
The Probability of both happening is <u>0.304</u>.
Step-by-step explanation:
P(A) × P(B)
= 0.76 × 0.4
= <u>0.304</u>