Select the correct answer.
what is the vertex of the parabola given by y = -(x − 2)2 − 1?

a.
(2, 1)
b.
(2, -1)
c.
(-2, 1)
d.
(-1, 2)

Which expression shows the sum of the polynomials with like terms grouped together

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number t of tokens james has is a function of g, the number of games he plays. write the function’s formula? t=

Helll ! 1,400 tons of wheat of two different varieties was delivered to the silo. when processing one variety, there was 2% of waste and 3% during the processing of the second variety of wheat. after the processing, the amount of remaining wheat was 1,364 tons. how many tons of each variety of wheat was delivered to the silo?