Answer:
x = 0
Step-by-step explanation:
add 23 on both side and x equals zero
substitute x for 0, and the equation is still correct
All the numbers added up then divided by the amount of numbers.
EX: 5 + 10 + 3 + 8 + 9
35
35/5
7
Answer:
yes
Step-by-step explanation:
because area of sphere equals =

so if we doubled the radius the surface area will be doubled
the greatest common factor of 32 and 90 is 2
30/20= 1 and 10/20 in simplest form that is 1 and 1/2