180/20=9
3.98(9)=35.82
Round 35.82 by the ones place= $36
FINAL ANSWER:$36
Half the area is 6000.
let x be the width of the walk so the inner rectangle has a length of 150-2x and width 80-2x and hence its area is (150-2x)(80-2x) which is equal to 6000.
so now we have an equation in terms of x which reduces to a quadratic and we solve for x
He will get 3.
You use cross multiplication. (Click on the photo to see it better!)
It’s 1+1 equal 11 btw I don’t know