Help ASAP Which equation represents the relationship of the measure of m∠X and m∠Y? m∠X = m∠Y m∠X + m∠Y = 90° m∠X + m∠Y = 100° m∠X + m∠Y = 180°

How many square feet of out door carpet will we need for this hole? 8ft 3ft 12ft 4ft

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2