Answer:
2
Step-by-step explanation:
If he uses 1 hour to practice harmonica, one our on homework, and another hour doing chores. He will be spending twice as much time practicing harmonica and doing homework than he would spend on chores.
Answer:
they need 4 buses
60+60+60=180 that does not get you to 196 so you would add 1 more bus
which equals 4 buses
Answer:
the explicit formula for the geometric sequence 2,6,18,54 is 
2,6,18,54
Step-by-step explanation:
In the sequence given: 2,6,18,54
The common ration is 3 because
a₁ = 2
a₂= 2*3 =6
a₃ = (2*3)*3 = 2*3^2 = 18
a₄= (2*3*3)*3 =2*3^3 = 54
Here we see for a₂ 3 has power 1, for a₃ 3 has power 2 and so on.
So, the formula will be

Here aₙ is the no of term.
a₁ is the first term of the sequence
and r is the common ratio among the sequence.
What is 20 percent (%) off $350?
Using the formula 1 and replacing the given values:
Amount Saved = Original Price x Discount % / 100. So,
Amount Saved = 350 x 20 / 100
Amount Saved = 7000 / 100
Amount Saved = $70 (answer)
The answer is D. hope this helped :)