2800 miles.
It takes one hour to go 350 miles, so if you multiply 350(miles) x 8(hours), you will get 2800.
To find this you need to first figure out ow many total dresses were surveyed, which is 162. Now to find the percent you first need to take the number of red dresses and divide it by the total, so 14/162. That equals 0.086. Then to get to a percent, shift the decimal two places to the right, so 8.6%. The round to the nearest percent which is 9%. So the correct answer would be A.
Let she work for x hours as carpenter !
so earned money = 20x
and for blacksmith she must work for 30-x hours
so earned money = (30-x) ×25
so putting in eqn;
20x+25(30-x) = 690
so, x= 60/5 = 12
so she works for carpenter for 12 hrs and 30-12= 18 hrs for blacksmith