exam Maths Puzzle Numerical Ability

Solve the Inequalities.

1. 4x-3≤17

2. 2y-9>5y+12

3. -8<3x+4<22

4. 3x-5<-11 or 2x-3>3

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exam Other Question

i need help in these two problems..can someone explain them to me thanks

problem #1
find the future value of the ordinary annuity.
If R = $2,500, I = 5% interest compounded qu When x number of units are sold, the price of each unit (in dollars)) is given by p= -x/2+75. Find the unit price when the following quantities are sold: 2,7,9,11.