For this case, you must use the given expression, taking into account that:
n = number of days.
We have then that for day 21, n = 21.
Substituting we have:
a21 = 100 + (21-1) * 4
a21 = 180
Answer:
she sprints 180 yards on day 21
1,900,000,000 in scientific notion is
1.9 ×10^9
Answer:
Mine is starburst
Step-by-step explanation:
4(a+2b) you have to factor out 4 from the expression
