Under which of the following operations are the polynomials 8a + 14 and
3b - 9 not closed?

a. division
b. subtraction
c. addition
d. multiplication

Geometry? i am really bad at math and have dyscalcullia. .

Angel entered a triathlon (a three-part race). he swam 1 mile, rode his bike 30 miles, and ran 10 miles. how far did he go altogether? a. 11 miles b. 123 miles c. 41 miles d. 40 miles

Shane can shovel the driveway in 4 hours, but if his sister it would take 2 hours. how long would it take taylor to shovel the driveway alone