Answer:
B
Step-by-step explanation:
Euler's formula for polyhedra states that
F + V - E = 2
where F is faces, V is vertices and E is edges
Substitute the values given and solve for F, that is
F + 13 - 26 = 2
F - 13 = 2 ( add 13 to both sides )
F = 15 → B
Answer:
6.4925 USD
Step-by-step explanation:
(6.625*98)/100=6.4925 usd
When s is 20 t is 4
when s is 10 t is 2
when s is 30 t is 6
16 1/2 is the answer
6 1/2 is equal to 6 2/4 so 6 2/4 + 4 3/4 equals 11 1/4 plus 5 1/4 equals 16 1/2
