What is the tangent of negative 4*pi/3

If their $7930 bid includes $2930 for lumber, what percent of the bid was the lumber?

What is 20% of 120 and how do u get the answer

For 9_10 tell whether the first number is multiple second number. 9). 21,7 10). 28,3 11). 17,3 12). 20,4 13). 55,5 14). 15,5 15). 26,4 16). 32,8 17). 48,7 18). 60,2 19). 70,4 20). 81,3

Express in exponential form log2 (x) = 3

If ef = 2x-12 and fg=3x-15 and eg = 23 find the vaule of x, ef and fg

Is 2/5 of 15 equal to 10

Let x represent any number in the set of even integers greater that 1 which inequality is a true for all values of x? A. X<0 B. X>0 C. X<4 D. X>4

2lb/wk = how many oz per day "

3 (5-2x) = -4 (cx+4) What value for c in the equation above will make the equation have no solutions?

Five times a number yield 20