Last year, only 4 companies used ice to cool their buildings. this year 8 more companies will use ice to cool their buildings. what is the percentage increase in the number of companies using ice from last year to this year

Which linear equations have an infinite number of solutions? check all that apply.  (x  –  3/7)  =  2/7(3/2x  –  9/14)8(x  +  2)  =  5x  –  1412.3x  –  18  =  3(–6  +  4.1x)(6x  +  10)  =  7(x  –  2)4.2x  –  3.5  =  2.1 (5x  +  8)

Acircle has a circumference of 28.36 units what is the diameter of the circle

Find the zeros of each function. f(x) = 6x^2 - 7x - 20