STD 10th maths exercise 3.5 elimination method

solve the following pair of equations by the
cross multiplication method

0.3x+0.4y=2.5
0.5x-0.3y=0.3

2/3(-6y+9x) expand each expression using the distributive property

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4

Which number line correctly shows 0.8 + 0.3?