exam Maths Puzzle Numerical Ability

here are 2 expressions:-
a: x^2 + x - 3
b: y^3 - 2y + 6
substitute in these numbers to evaluate the expressions
3, -3, 0.5, 0.35

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exam Other Question

Please help me solving the following

simplify

-2^-3 - 3/-3^-2 - 3^0

thank u A 100 KILOGRAM MIXTURE OF 0.69 KG. OF PINTO BEANS AND 0.89 KG. KIDNEY BEANS IS VALUED AT 81.00. HOW MANY KILOGRAMS OF EACH DOES IT CONTAIN?.