Use r = 2 and r = 5 to determine if the two expressions are equivalent.
r+ 4(2 + r) - 12 8 + 2r - 6
Complete the statements.
When r = 2, the first expression is

When r = 5, the second expression is

The expressions are not equivalent.

Aswim teacher sells lesson packages. the best deal has the highest ratio of lessons to total cost.swim lesson packagesnumber of lessons total cost$10$4010 1 $8015$80which package is the best deal? l lesson for $105 lessons for $4010 lessons for $8015 lessons for $80mark this and returnsave and exit

Which is the graph of f(x) = (4)x? image for option 1 image for option 2 image for option 3 image for option 4

Grace is standing 18 feet from a lighthouse and kelly is standing 10 feet from grace. the angle that grace looks up to see the top of the lighthouse is 45°. the angle that kelly looks up to see the top of the lighthouse is y°. find the height, h, of the lighthouse. find the angle, rounded to the nearest tenth of a degree, in which kelly looks up to the top of the lighthouse. to the nearest tenth of a degree, find the value of x° . in two or more sentences, explain your calculations