The ratio that is not equivalent is B. 7:15
The reason why it's not equivalent because for the other ratios:
1:5 could be turned into 2:10 by multiplying 1 and 5 by 2.
4:20 could turn into 2:10 by dividing both numbers by 2.
And 8:40 could be divided by 4 to get 2:10.
But you can't do anything to 7:15 to make it 2:10.
19 is a prime number so 1, 19
hope this helps!
Yes it’s a rectangle because the diagonals bisect each other, and they are equal in length.
Answer:
He needs to save 90.75
Step-by-step explanation:
Take the money the vacation will cost and divide it by the number of months in a year. 1,089 ÷ 12= 90.75