Step-by-step explanation:
the perfect squares =
81, 121, 625
Solve the multiplication first then the division and the subtract them to get something like this:
which simplifies to 29.7 (3 significant figure )
Equation would be 6.95+.95x. 6.95 is the price of the pizza itself and the .95x is the amount of toppings and the cost.
If you have a grid with a hundred units and you need to show 1 hundredth (or 1%) you shade in 1 unit. If you need to show a tenth (or 10%) you shade 10 Units. I would need a picture of the grid to help any further.