Answer:
yes he is correct
Step-by-step explanation:
10000x0.05=500 so thats correct
he will pay 500 for 20 month= 10,000
Answer:
35 cm ^2
Step-by-step explanation:
5x5 = 25
5-3 = 2
5x2 = 10
25+10 = 35cm^2
(_ , _) means (X , Y)
(25 , ) means
X = 25 then you need find the value of Y from the equation .

so the first answer is (25,-3)
..............
( , -8) means
Y = -8 then you need to find the value of X from the equation .

so the second answer is ( 0 , -8 )
hope this would help you
Easy divide the $ by the yards then multiply the number of $ to the amount needed ;D