by what number should (-8)^-1 be multiplied to get (20)^-1?
(a)3
590871
2725594
2012190
605079
5451188
4024380
22975516
27991016
5028966
(3/4)² - (1/2)² + 1/2
28xy - 16 b + x y - b
solve for x and y that satisfy both equations
4x + 6y = 240
5x + y = 100
1/1000 / 2
(5/3)^-5*(5/3)^11=(5/3)^(8*x)
Find the value of x
log(0.13)
