Tessa has 42 word of an essay typed and is typing about 1.3 words per second margo has 122 words of a essay typed and is erasing about 1.2 words per second on how many seconds will the number of words in tessa essay exceed the number of margos essay

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

If 30 lb of rice and 30 lb of potatoes cost ? $27.60? , and 20 lb of rice and 12 lb of potatoes cost ? $15.04? , how much will 10 lb of rice and 50 lb of potatoes? cost?

Sandy is upgrading her internet service. fast internet charges $20 for installation and $52.45 per month. quick internet has free installation but charges $57.45 per month. part 1 out of 2 complete the equation that can be used to find the number of months after which the internet service would cost the same. use the variable x to represent the number of months of internet service purchased.