Given: δавс, m∠acb = 90°,m∠acd = 30°,ad = 8 cm. find: cd, perimeter δabc solve!

Giuseppi's pizza had orders for $931.00 of pizzas. the prices were $21 for a large pizza, 514 for a medium pizza, and $7 for a small pizza. the number of large pizzas was two less than four times the number of medium pizzas. thenumber of small pizzas was three more than three times the number of medium pizzas. how many of each size of pizza were ordered?

Find the value of the variable and the length of each secant segment.

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?