Which terms could be used as the last term of the expression below to create a polynomial written in standard form? Select three options. –5x2y4 + 9x3y3 +

x5
y5
–4x4y5
6x4y
–xy5
–StartFraction x Superscript 4 Baseline Over 9 EndFraction

Aresearch company wants to test the claim that a new multivitamin to improve short term memory. state the objective of the experiment, suggest a population, determine the experimental and control groups, and describe a sample procedure.

Answer soon(fast) 15 pts-brainliest? for right answer with small explination a restaurant catered a party for 40 people. a child’s dinner (c) cost $11 and an adult’s dinner (a) cost $20. the total cost of the dinner was $728. how many children and adults were at the party? use the table to guess and check.(i couldn't get the graph onto the question)                                8 children and 32 adults9 children and 31 adults10 children and 30 adults12 children and 28 adults

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?