Respuesta:
El total de la factura de Isaac es $84.53
Explicación detallada:
$37.00 + $42.00 = $79.00 < b (factura)
b + t (impuesto sobre ventas) = c (costo total)
(7%/100 = 0.07)
(0.07 * 79 = 5.53)
(t = $5.53)
$79.00 + $5.53 = $84.53
¡Buena suerte!
Past due amount = $87.50
Late fee equals 15% of $87.50, which is 0.15 × 87.50 = $13.125
New charges are $75.00
Total due now = 87.50 + 13.125 + 75 = $175.625
Final total: $175.63
Answer:

Step-by-step explanation:
Given



Required
Calculate the hourly rate
First, we will determine the amount of ice cream that was sold


Next, calculate the average hourly rate:






-- Approximated
The recipe uses

cups of white flower together with 6 cups of wheat flower.
Therefore, the combined quantity of flower equals

If

represents that combined amount, the equation to write is:

Constraints are as follows:
y can only be

6
Note that if y = 0 then x would have to be -6, which is not possible.