I need help!!! (pls explain don't just give me the answer) Question: Simplify each expression
a) 4 + 3
b) 8 + 2 − 4
at least explain one between those two abovePLEAS

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?

In the diagram, be and ad pass throughthe center of circle o, and the area ofsector aoc is 47.45 square units. what isthe area of sector boc? use the value =3.14, and round your answer to two decimalplaces.22.33 square units25.12 square units

Multiply and simplify. 2x^2 y^3 z^2 · 4xy^4 x^2 i will mark you brainliest if right. show how you got the answer, !