4. Round to the nearest 100 to

estimate the difference.

390 - 122 =

A bookstore has 5 shelves of books about animals. There are 30 animals on each shelf. How many books about animals does the bookstore

A shampoo company recently paid a consulting firm to produce a study to determine if using their product resulted in cleaner hair than other brands. What is wrong with this study?

Loris book has 6 times more pages than sals book. the combined number of pages for the two books is 532. how many pages loris book have?

What expression is equivalent to 4x^5 x 2x^6 6x^30 8x^30 6x^11 8x^11 (the number next to the arrow is the exponent)

A line through the origin has a slope equal to two. Rotate this line about the origin by the angle (4/5,3/5). What is the slope of the resulting line? The answer is - 11/2 but i dont know how

Which one of the following measurements represents the longest distance A. 1 km B. 10 cm C. 5 m D. 50 mm

Wich of the operations,+,-, x➗are inverse o each other

Scale 1:50. 18cm in this scale is equal to?

What is the unit rate to this math problem? 50 meters in 27.5 seconds?

VX What is the area of the parallelogram? 18 cm 28 cm. 36 cm 45 cm