Solve (x + 1 < 5) ∩ (x - 4 > -3) a) {all real numbers} b) {x | 1 < x < 4} c) {x | x < 4 or x > 1}

The suare root of 9x plus 7 plus the square rot of 2x equall to 7

What is the lcm of 16 and 40 ? 24 and 40 ?

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6