Given that the measure of ∠x is 20°, and the measure of ∠y is 30°, find the measure of ∠z.

Based on what i know about mean, this doesn't add up.

What is the equation of this graphed line? enter your answer in slope-intercept form in the box.

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?