I need help with these math problems please?

Question

1. Write the following geometric expression using the given symbol.

4/3 times TT times the cube of the radius (y)


2. Do you think multiplication is distributive over subtraction?
1/2 (16 10) and 1/2x16-1/2x10

3. 8+2x(36)

Answer 1

Problem 1:

4 π r ³
---------
... 3

Problem 2:
Indeed:
½(16 - 10) = ½(8) = 4
and
½(16) - ½(10) = 8 - 4 = 4

Problem 3:
8 + 2 * (36)

Do the multiplication first:
8 + 72

Then the addition:
80