Robert spent $49.62 for six T-shirts which number sentence shows the best way to estimate the cost of each T-shirt A $45 / 5 = $9 B $48 / 6 = $8 C $50 / 10 = $5 D $50 / 5 = $10

To estimate the cost of each T-shirt Robert bought, we can start by rounding the total cost of the T-shirts to a number that is easy to work with and dividing it by the number of T-shirts.

Robert spent $49.62 for six T-shirts. If we round $49.62 to $50, we want to divide it by the number of T-shirts (which is 6):

The closest estimation would be \( 50 / 6 \).

From the options given:

A) \( 45 / 5 = 9 \) (not related to our numbers)
B) \( 48 / 6 = 8 \) (this is relatively close but not the best estimate)
C) \( 50 / 10 = 5 \) (this changes the number of T-shirts, so it's not relevant)
D) \( 50 / 5 = 10 \) (again, the number of T-shirts is incorrect here)

Among the options, **B) \( 48 / 6 = 8 \)** is the best estimate, as it uses the correct number of T-shirts and provides a reasonable approximation close to the actual cost per T-shirt.

So, the best way to estimate the cost of each T-shirt is option **B: \( 48 / 6 = 8 \)**.