If you meant "8 4/5," then that's "a mixed number."
Otherwise, both 8 and 4/5 are real numbers, and both are rationale.
Please be clearer about what you need to learn here.
We will first calculate the total cost in pounds then convert to dollars.
1- Equipment for three offices. The cost is 100 pounds per equipment.
Total cost of equipment = 3*100 = 300 pounds ..........> I
2- One switchboard. The cost is 333 pounds.
Total cost of switchboard = 333 pounds ...............> II
3- Total cost excluding taxes can be calculated by adding I and II as follows:
Cost excluding taxes = 300 + 333 = 633 pounds
4- Tax is 10% of the cost.
Tax amount = 0.1 * 633 = 63.3 pounds
5- Total cost including taxes = 633 + 63.3 = 696.3 pounds
6- Convert the cost to dollars.
We know that 1 pound is equivalent to 1.5$. To know the equivalence of 696.3 pounds, just do cross multiplication as follows:
Cost in dollars = (696.3*1.5) / 1 = 1044.45$
The answers is 38x22!!! Hope this helped!! :)
