Foundation Plus

Grouped data has five classes of width 5, the first being 15 < x ≤ 20. The frequencies in order are 3, 11, 21, 7, 16. Write down the modal class.Grouped data has five classes of width 5, the first being 15 < x <= 20. The frequencies in order are 3, 11, 21, 7, 16. Write down the modal class.

Write 8⁶ / 8³ as a single power of 8.Write 8^6 / 8^3 as a single power of 8.

The lines y = 2x + 5 and y = -3x + 10 are drawn. Write down the coordinates of the point where they cross.

Red and blue sweets are in the ratio 7 : 9. There are 21 red sweets. How many sweets are there altogether?

A cone has base radius 5 cm and vertical height 6 cm. Work out its volume, leaving your answer in terms of π.A cone has base radius 5 cm and vertical height 6 cm. Work out its volume, leaving your answer in terms of pi.