❓❗❓❗PLEASE HELP ASAP❓❗❓❗ (3z^3 – 4z + 7z^2) + (8z^2 - 6z - 5)

Simplify (8x^3 - 5x+1)-(x^2+4). Show your work

Simplify the product 4x(5x^2+ 3x +7).
Simplify and write in standard form

When turned about its axis of rotation, which shape could have created this three-dimensional object?

Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.

Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 −2.00 8.4 −8.4