Large rectangle measures 10x5 units with a smaller shaded rectangle inside is 7x3 units what is the probability that a point chosen inside the large rectangle is not in the shaded region?

Area of large rectangle is 50u and area of shaded rectangle is 21u. Area of unshaded is 29u. 29/50 chance that a point chosen inside the large rectangle is not in the shaded region. If you need a decimal number then you can use the calculator for that.

Let's first find the area, I had a question similar to this in math league.
10 × 5 = 50
7 × 3 = 21
You can subtract the shaded from the total.
50-21=29
Now the probability is 29/50.