4. - 4 < - 3
On the number line values further to the left are less than values to the right of them.
5(a) √701 = 26.47640459
(b) 26.5 (to 1 decimal place)
when rounding to 1 dec. place if the value in the second decimal place ≥ 5 then round up. If second decimal place < 5 then leave as is
here 7 ≥ 5 so round up
