Combining like terms with negative coefficients

8t+1+(−4t)+(−6)

What is the square root of 45? (step by step working plz)

Twenty points. suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?