Work out the value of the expression from x - 9 when x = 20

(a)  

Work out the value of the expression from f + g when f = 7 and g = 4

(a)  

Work out the value of the expression from m - n when m = 100 and n = 25

(a)  

Work out the value of the expression from y/4 when y= 32

(a)  

Work out the value of the expression from x + y/2 when x = 19 and y = 11

(a)  

Write a formula for the number of minutes in any number of hours with words

(a)  

use the formula V = IR to work out v when i = 3 and R = 7

(a)