What is the variable in the expression 5-4t?

How many grams are in 8 kilograms? if 100 grams = 1 kilogram

Rewrite the following quadratic functions in intercept or factored form. show your work. y = x^2 + 7x + 10

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.