If it is a school night, eric goes to bed early. eric will not go to bed early tonight. therefore, it is not a school night. determine if the statement is valid. a. no, /, therefore,/ is an invalid argument. b. no, /, therefore, / is an invalid argument. c. yes, /, therefore, / is a valid argument. d. there is not enough information to determine.

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it

answer: the answer is one

step-by-step explanation:

pemdas, in this situation there is no parenthesis or exponents so you go to multiplication, 1x1=1, then division 1/1= 1 then addition 1+1=2 then subtraction 2-1=1