Which of the following are not polynomials?
a. * +2{x +1
b. +x+1
d. x2 + 12x + 1
e. x2 + x +1

Ricardo ran the 400 meter race 3 times his fastest time was 54.3 seconds his slowest time was 56.1 seconds if his average time was 55.0 seconds what was his time for the third race

Which of the following is true for the relation f(x)=2x^2+1

Due to bad planning, two of the local schools have their annual plays on the same weekend. while 457 people attend one, and 372 attend the other, only 104 people were able to attend both. how many people went to at least one play?