Lido Company's standard and actual costs per unit for the most recent period, during which 400 units were actually produced, are given below:

	Standard	Actual
Materials:
Standard: 2 metres at $1.50 per m.	$3.00
Actual: 2.1 metres at $1.60 per m.		$3.36
Direct labour:
Standard: 1.5 hrs. at $6.00 per hr.	9.00
Actual: 1.4 hrs. at $6.50 per hr.		9.10
Variable overhead:
Standard: 1.5 hrs. at $3.40 per hr.	5.10
Actual: 1.4 hrs. at $3.10 per hr.	_____	4.34
Total unit cost	$17.19	$16.80

There were no inventory of materials at the beginning or end of the period. Required: From the above information, compute the following variances. Show whether the variance is favourable (F) or unfavourable (U): a) Materials price variance b) Materials quantity variance c) Direct labour rate variance d) Direct labour efficiency variance e) Variable overhead spending variance f) Variable overhead efficiency variance