Can someone me work out these x 8) work out 12 divided by 0.4 9) round off 48.7 to one significant figure 10) the square root of 1000 divided by (7.6x1.9) 11) if x=2 calculate the value of x^2 + x^3 12) solve 5x+2=2x+14 13) find the nth term of this sequence 5, 10,15,20,25 14) if y=2x+3 find the value of y when x=-3 15)calculate the length of the circumference of a circle with a diameter of 2.6m (2dp) 16)expand and simplify (x-3)(x-4) 17)solve 3x+11< (with like a line underneath) 2 18)work out the value of xy+y when x=-3 and y=2 19)write down the next term in this sequence 3,5,9,12,15,23