Answer:
Y= -2x +40
Step-by-step explanation:
Yes, the relationship is proportional. 3 * 3.2 = 9.6. And 5 * 3.2 = 16.
Answer:
C. .45
Step-by-step explanation:
Think of it like this: that is 45 hundredths and you are trying to find what 45% is and it is like 45/100 so .45 is your answer.
S = a*((1 - r^(n+1))/(1-r))
S = 1*((1 - 2^(7+1))/(1-2))
S = 1*((1 - 2^8)/(1-2))
S = 1*((1 - 256)/(1-2))
S = 1*((-255)/(-1))
S = 255
So 1+2+4+8+...+128 = 255
10 dimes cost 10 cents each so 10 x 10 is 100 coins and 5 nickels are 5 cents each so 5 x 5 is 25 and 1 penny is 1 cent so if you add 100, 25, and 1 it's 126 which is 1.26
