Solve the summation from n equals 2 to 8 of negative 2 plus 5 times n. Answers are 92, 146, 161, and 164. Thank for you helping!

Jacob signs up to work for 2 1/2 hours at the school carnival. if each work shift is 3/4 hour, how many shifts will jacob work? (i just want to double check : |, for anybody that responds! : )

The anwser cause i do not understand just plez

Match each whole number with a rational, exponential expression 3 square root 27^2find the domain and range of the exponential function h(x)=125^x. explain your findings. as x decreases does h increase or decrease? explain. as x increases does h increase or decrease? explain.