If you apply effort force 0.4 m from the top od a broom and the mechanical advantage is 0.5, how long is the broom

Angie has saved 3/8 of the amount she needs to buy a bike. clive has saved 7/10 of the amount he needs to buy a skateboard. what is the difference between clive's and angie's fraction of savings?

Given: m zade = 60° and m2cdf = (3x + 15) prove: x = 15

5,678.321 what place value is the 1 in