If you added the two polynomials below what would be the leading coefficient? What number goes where the question mark is? (4x+7)+(8x-5)= ?x+2

1. during first 10 seconds 2. between 10 seconds and 35 seconds 3. during 35 seconds to 40 seconds

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?