When I solve for variables but there is no answer how do I solve/estimate?

What are the zeros of f (x) = x^2+x-20? A. x=-2 and x=10 B. x=-10 and x=2 C. x=-5 and x=4 D. x=-4 and x=5

2hundreds = 1hundred 9 tens_ ones

It takes 212121 minutes for 555 people to paint 777 walls?

How much will the interest be for a $500 loan at 6% interest for one year

On a farm, 4 1/2 out of every 15 acres of land are used to grow crops.

Simon is making wreath to sell. He has 60 bows, 36 silk roses, and 48 silk carnations. He wants to put the same number of items on each wreath. All the items on a wreath will be the same type. how many items can simon put n each wreath?

the two way table below gives the thousands of commuters in Massachusetts in 2015 by transportation method and one way length of commute

Determine whether the random variable described is discrete or continuous. The height of a randomly chosen basketball player.

Simplify 3 to the second power times 3 to the 5th power

Tomatoes are 9 for $4. How much are each?