Which of the following is irrational? a.7. * (-4) b. sqrt of 16 + 3/4 c. sqrt of 3 + 8.486 d. 8 2/3 x 17.75

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?

Will give brainliest sum of arithmetic series (sigma notation) find the numerical answer to the summation given below. (image shown below)

Write the sentence as an equation. b increased by 281 is d