Step-by-step explanation:
3t + 4 = 19
3t = 15
Hence t = 5.
Answer:
0.3
30%
30/100 is the same as 60/200, both the numerator and denominator have been doubled.
Answer:
The explicit form is 
Step-by-step explanation:
The explicit form of a geometric sequence is given by:

where an is the nth term, a is the first term of the sequence and r is the common ratio.
In this case:
a=162
The value of the common ratio is obtained by dividing one term by the previous term.
For the first and second terms:
108/162=2/3
For the second and third terms (In order to prove that 2/3 is the common ratio)
72/108=2/3
Therefore:
r=2/3
Replacing a and r in the formula:

A real number is rational, if it is the ratio of two integers. Otherwise it is called irrational. If D<span> is the diameter of circle, then </span>C<span> = </span>π D<span> is it's circumference.</span>
5/9 of a foot
Step-by-step explanation:
Divide 5 by 9 to find the length for 9 equal pieces