23/50 is 0.46 so the percentage would be 46%
#1: b. 100 square root is 10. 10 x 10 = 100. 100 = rational number, Others include a series of numbers that cannot be written down.
#2 -7.8 With the line on top. THe line on the 8 means that it continues for ever.
Only other one is d.
I don't know if this is the ans.u2+14-28=0
4x^2-92x=9x^2 +126x;
5x^2+218x=0;
x(5x+218)=0;
X=0,-43.6, my calculation might be wrong tho you can’t check on your own
