Answer:
19v
Step-by-step explanation:
3v, 7v, and 9v all have the same variable, therefor, you can add all of them up as you would regular numbers, you just have to add "v" at the end.
I know I got the last one wrong, so I will hopefully get this one right
I am not that great with Proportional and Not Proportional, but
1. Y is 0.5 times x
2. Y is 1.5 times x
Square root both sides. The unreduced answer is root 28. Now. To reduce root 28, you need to break it down into factors and hope one of them is a perfect square.
4*7=28, and 4 is a square number. The square root of 4 is either positive or negative 2. Now that you've found that square, pull it out from under the square root symbol. Under the root symbol, you're left with 7 (not a perfect square).
Therefore, your answer is C
Grocery Mart sold a better deal than baldwsin hills
$15 + $32.50 + 8% = $51.30
15 + 32.50 = 47.50
8% × 47.50 = 3.80
47.50 + 3.80 = 51.30