A blouse that cost $16.85 is on sale for 45% off. What is the amount of the discount?

Do you need to regroup ones to find the product of 42 and 3? explain?

Assinale todas as assertivas corretas com relação aos princípios de ensino na Matemática. Peso: 1.0 1. A repetição de situações é contraindicada. 2. Resume-se a ensinar conceitos, habilidades e algoritmos. 3.

Johanna rode her bike 7 miles to a lake. She rode 3/4 of the distance to the lake before lunch. How many miles did Johanna ride before lunch?

If f (x) = 2x - 3 and g (x) = x, what is f (g (2)) ? OA) - 2 OB) O OC) 1 OD) 4

Ben went to Boure. He got a sandwich for $11.99 and a soda for $2.25. He tipped his waiter 15% and paid 9% in sales tax. What was the subtotal of his bill? What is the total cost with tax and tip?

Suppose $x$,$y$, and $z$ form a geometric sequence. if you know that $x+y+z=18$ and $x^2+y^2+z^2=612$, find the value of $y$.

A manager checked production records and found that a worker produced 160 units while working 40 hours. In the previous week, the same worker produced 138 units while working 36 hours.

What is a balanced equation using numbers 9,7,2,1,6?

Part of the population of 10,800 hawks at a national park are building a nest. A random sample of 72 hawks shows that 12 of them are building a nest. Estimate the number of hawks building a nest in the population.

Olivia has $220 to buy presents for her 3 sisters and 2 nephews. She wants to spend $10 more on each sister than she spends on each nephew.