The answer is y = -13/7 + 3x/7
You solve for y so then u subtract the 7x from 30 to get 30-7x equals -10 since the -10 has a variable it means u divide by -10 to the subtracting equation to get-3+7/10
Answer:
1621 ÷ 89 is 67 67 en una fracción or 0.85714285714 en una decimal
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
-9+4=-5 in other words its increasing at this mark cause your adding positive numbers.
Answer:
25%
Step-by-step explanation:
Given that,
Initial cost of a t-shirt = $30
Final cost of a t-shirt = $37.50
We need to find percent of change. The percentage change in any value is given by :

Hence, the percentage error is 25%.