How to find an acute angle between two lines?

1 5/9 divided by 2 1/3

The percent of 3.5% of 400

Find the value of the following expression: (2^8 ⋅ 5^-5 ⋅ 19^0) ^-2 ⋅ 5 to the power of negative 2 over 2 to the power of 3, whole to the power of 4 ⋅ 2^28 Write your answer in simplified form. Show all of your steps.

A store display rotates 40 times every half hour. How many times will the display rotate in 4 hours?

What is the answer to 12x+6=18-48-9x

An animal shelter has 15 cats and 12 dogs available for adoption. the shelter wants to select 6 cats and 4 dogs to feature in the adoption newsletter. in how many ways this can be done?

Express 87 24/25 as a decimal

A baker bought 7500 grams of flour how many kilograms did she but

The sum of two numbers is 25. two times the larger number is the same as 3 times the smaller. find the two numbers.

If your income is $27 a month, the price of pizza is $5 and the price of a video is $4, how many pizzas will you buy and how many videos will you rent each month?