The diagonals of a rhombus are 16 cm and 12 cm find the length of the side.

M varies jointly as the square of n and square root of q. If M = 24 when n = 2 and q = 4, find M when n = 5, q = 9.

Find the mean deviation of assets of numbers: 14, 15, 16, 17, 18, and 19.

a. A car travels a distance of 112 km at an average speed of 70 km/h. it then travels a further 60 km at an average speed of 50 km/h. Calculate, for the entire journey, the total time taken.

b. if  \(\frac{x}{y}\) = 2  and  \(\frac{y}{z}\) = 3, find the value of  \(\frac{ x + y}{y + z }\)

a. In a football match, tickets for children and adults were sold at D3.00 and D5.00 respectively. if 400 people attended a football match and D1700.00 was collected in ticket sales. How many tickets were sold to adults?

b. Mr Johnson sold 250 tickets. If 175 of the tickets were for adults, how much sales did he make altogether?