<u>Answer:</u>
When Anne pushes the wheelbarrow 25 meters the work done is 1120 joules
<u>Solution:</u>
We know 
Anne is pushing the wheelbarrow with a force of 70 N at an angle of
with the horizontal
So the force of Anne will be 
She pushes the wheelbarrow 25 meter, So D = 25 meters
So, the 
Anne has done total 1120 joules work.
23 = (2a) + 6
23- 6 = 2a
17 = 2a
17/2 = 2a/2
a = 8.5
hope this helps
For part A add up all your students then add up all your students that like bike riding and skating (80+90) divide that by the total number of students who took the survey
For Part be put 20+40 over the toatl number of student then simplify
454
check...
same hundreds digit as ones : correct
value of tens digit is 50 : correct
value of ones digit is 4 : correct