What is the 21st term of the sequence with a1 = -6 and d = 4? a) 70
b) 74
c) -40
d) 78

2a+7+4ahow many terms? how many variables? any like terms? yes noif yes, which ones? what are the coefficients? any constants? yes noif yes, which ones? simplify the expression by combining like terms and constants: how many terms now?

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

Written as a simplified polynomial in standard form, what is the result when (2x+8)^2(2x+8) 2 is subtracted from 8x^2-38x 2 −3?