What is the leading coefficient of the polynomial?

30x2 + 12x + 18x3 + 10

A) 10
B) 12
C) 18
D) 30

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

The graph and table shows the relationship between y, the number of words jean has typed for her essay and x, the number of minutes she has been typing on the computer. according to the line of best fit, about how many words will jean have typed when she completes 60 minutes of typing? 2,500 2,750 3,000 3,250

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account