A/5 + 3 = 8 I don't understand this on my hw as i havent been taught

I don't understand how to show my work for 19% of 72 estimated

The percent of discount is 55% and the sale price is $90. What is the original price

Which ordered pairs are a solution to y=4x? Select all that apply. (0,0) (1,3) (2,8) (-1,4)

Brandon buys a radio for $43.99 in a state where the sales tax is 7%

What is the value of the expression (-8/9) * (-2/3) multiplied by (-4 1/2)

To solve the inequality - 1/4x>-2, Chrissy thinks she should add 1/4 to both sides. What is wrong with her first step? A. Nothing is wrong; her first step is correct. B. She needs to subtract 1/4 from both sides instead. C.

Margo borrows $1400, agreeing to pay it back with 2% annual interest after 17 months. How much interest will she pay?

Jerome walked mile in the morning and mile in the evening. How many miles did he walk in all?

In right triangle LMN, ∠N is a right angle and cos M = 4685. What is m∠L to the nearest degree?

O preço do diesel sofreu três alterações ao longo do último trimestre de 2017. A primeira alteração foi em outubro, cujo aumento foi de 10% no preço inicial do produto. Em novembro, houve um novo aumento, agora de 20%.