4. Michael wants to make an investment so that he would recerve $4000 every 6 months for 5 years, with the first payment due in 6 months. How much money should he invest now at 7% per annum,...

Extracted text: 4. Michael wants to make an investment so that he would recerve $4000 every 6 months for 5 years, with the first payment due in 6 months. How much money should he invest now at 7% per annum, compounded semi-annually? Holly is buildıng a triangular patio using concrete. The patio will have base 5.3 m, height 3.3 m, and depth 9 cm. She decides to use a concrete 5. mix that requires 310 kg of cement for each cubic metre of concrete. The cement is sold in 40 kg bags that cost $4.49 each. Determine the cost of cement for the patio. Focus