Which equation is quadratic in form?
a. 6(x + 2)^2 + 8x + 2 + 1 = 0
b. 6x^4 + 7x^2 – 3 = 0
c. 5x^6 + x^4 + 12 = 0
d. x^9 + x^3 – 10 = 0

Neal buys a board game. he pays for the board game and pays $1.54 in sales tax. the sales tax rate is 5.5%. what is the original price of the board game, before tax

Which function is represented by the graph? a. f(x)=|x-1|+3 b. f(x)=|x+1|-3 c. f(x)=|x-1|-3 d. f(x)=|x+1|+3

Martha is training for a duathlon, which includes biking and running. she knows that yesterday she covered a total distance of over 55.5 miles in more than than 4.5 hours of training. martha runs at a speed of 6 mph and bikes at a rate of 15.5 mph.