2 + 3 × (8 + 53 ÷ 1)

Can please include the working to it. Thank you,

Lucy and donavan measured the length of the school garden. lucys measurement is 11.3m and donavans measurement is 113 cm. could both be correct? explain

Choose the more precise measurement. 26.4 cm or 8.39 cm

Find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible