18/30 = $0.6 per message
0.6 * 12 = 7.2
Solution: $7.20 for 12 messages
<h3>
Answer:</h3>
<h3>
Step-by-step explanation:</h3>
A) Let's first consider the effect of the tax:
total payment = (food cost) + 25% × (food cost) = (1 + 0.25)×(food cost)
If the cost of a sandwich is x dollars, the cost of 6 sandwiches will be 6 times that, or 6x dollars. When the $2 cost of the soda is added, we get ...
food cost = 2 + 6x
Putting this into the equation for total payment, we find the expression to be ...
total payment = 1.25(2 +6x)
_____
B) Evaluating the expression for part A with x=5, we get ...
total payment = 1.25(2 +6·5) = 1.25·32 = 40 . . . . dollars
Answer:
6 pizzas
Step-by-step explanation:
At least 10 and fewer than 20 makes it 10-19
So,
10-19 => 6 pizzas
6 pizzas have at least 10 pieces of pepperoni but fewer than 20 pieces of pepperoni.
The answer is D) 11/21
Your welcome
Answer: She has to score a minimum of 92 marks to take her average to 80
Step-by-step explanation:
Let the equation be
Three months total = 76 x 3 = 228
(x + 228) / 4 = 80
x + 228 = 80 x 4
x = 320 - 228
x = 92
