exam Maths Puzzle Numerical Ability

14.9 = 8.6 + 0.9m

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exam Other Question

Please help me solve my assignment..
my questions are:

1). -3 1/4 + 1/2 =

2). 3 + -4/5 =

3). -2 1/8 + -1 1/4 =

4). -25 + -17/3 =

thank you... The Diaz family bought a new house 10 years ago for $80,000. The house is now worth $140,000. Assuming a steady rate of growth, what was the yearly rate of appreciation?

I appreciate any help you can give me!