Heye Inc. has provided the following data concerning one of the products in its standard cost system. Variable manufacturing overhead is applied to products on the basis of direct labor hours.

Inputs	Standard Quantity/Hours per unit of output	Standard price or rate
direct materials	6.7 grams	$7.80 per gram
direct labor	.20 hours	$19 per hour
variable manufacturing overhead	.2 hours	$8.30 per hour

the company has reported the following actual results for the product for August

Actual output	6,300 units
raw materials purchased	48,100 grams
actual price of raw materials	$7 per gram
raw materials used in production	42,200
actual direct labor hours	1,350 hours
actual direct labor rate	$20.10 per hour
actual variable overhead rate	$9.00 per hour

a) compute materials price variance in august

b) compute materials quantity in august

c) compute labor variance for August

d) compute labor efficiency variance for august

e) compute the variable overhead rate variance for august

f) compute variable overhead efficiency variance for august