Answer:
2.71
Step-by-step explanation:
Given 8 - 2/3 = 8(3/3) - 2/3 = 24/3 - 2/3 = 22/3 = 7.333 then the radical is
7.333**(1/2) = 2.71
8w-15= 17
17+15=32
32/8
W= 4
Answer:
132 square cm = 20.46 square inches
Step-by-step explanation:
Total surface area = area of base (square) + 4 x area of one triangle.

The three really doesn't mean anything. the only thing the 3 stands for is how many times you have to multiply 0.25 . so in this situation you have to multiply 0.25 3 times.
this is how you do it when you get problems with exponents. this is the work /answer : 0.25×0.25×0.25=0.015625