a) 3xy-7yz+5xz-xy-yz-+7xz
b) ⁴5x₂+x⁴ -7x³-x⁴-x³-x²+x⁴-2x₂
c) (4x-3xy+-5+y)
d)(25x²-10yx+8x²+12xy-9y²-x²y²

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 of the greatest common gcf of 32 and 48 a 16 b 96 c 8 d 32

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees