Roxanne has $20 and she wants to buy some shirts. she picks one shirt that costs $10.99 and two shirts that cost $4.99 each.

which statement best describes if an exact total or an approximate total should be calculated?

a.
roxanne must add the exact cost of the three shirts so she will know if she has enough money to buy the third shirt.

b.
roxanne can round the prices of the shirts to the nearest dollar and then add to estimate if she has enough money.

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles

the answer for this question is a= 13,622.84

step-by-step explanation: