Which strategy best explains how to solve this problem?

artie was saving pennies. on the first day, he saved 2 pennies. the next day, he saved twice as many as he did the first day, giving him a total of 6 pennies (2 + 4). he continued doubling the number of pennies he saved each day for 10 days.

how many pennies did artie have all together at the end of 10 days?

a.
translate into a number sentence.
10 × (2 + 4) = b
first add up the pennies in the first and second day. then you need to multiply by the total number of days.

b.
make a table.

day pennies saved that day running total
1 2 2
2 4 6
3 8 14

c.
draw a diagram.
draw 2 pennies and label them day 1. draw 4 pennies and label them day 2. draw 8 pennies and label them day 3. continue this for the 10 days and then count all the pennies on day 10.

need