Answer:
28
Step-by-step explanation:
65% of x = 52
x= 52*100/65 = 80
now
35% of 80 = 35/100 * 80 = 28
Yes it is.
b
2x²+3x-2=0
(2x-1)(x+2)
x+2=0
x=-2 (no, because x must be >0)
2x-1=0
2x=1
x=½ (yes, because x>0)
