exam Maths Puzzle Numerical Ability

wat does it mean or called when there is a number in the lower right hand corner or a a vairable or other number please tell me how to solve thanks

Read Solution (Total 0)

exam Other Question

after you find the axis of symmetry, do you plug it back into the original equation to get the y intercept? can someone please offer there intellegince?
16. Ricardo is 4 years less than twice as old as his sister. The sum of their ages is 20. How old is Ricardo?
A) 8
B) 10
C) 12
D) 14