Answer:
y=20x+10
Step-by-step explanation:
Given:
Donald has x $20 bills and 1 $10 bills.
Let y be the total amount Donald has.
To calculate his total, we multiply the value of each bill by its frequency then sum:
Hence, the expression of Donald's total is given as y=20x+10
Answer: 7
7x10 =70
The wright answer is 16.33 inches
c)
16) Cost price = Selling price * 100 / (100- loss%)
= 800 * 100 / 80 = 10*100 = 1000
Loss = Cost Price - Selling price = 1000 -800 = 200
