Tosha and her 3 friends Went to the movies. They
each got a ticket to the
movie and a drink. Two of
them got popcorn, and the
other two got a box of
candy. Write an expression
for how much the friends
spent at the movies.

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

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.

Write a similarity statement for the similar triangles. afgh ~ a