A boat traveled 189 miles downstream and back. The downstream trip took 7 hours. The trip back took 21 hours. Find the speed of the boat in still water and the current.

Consider the expression below. For (x + 4) (x + 9) to equal 0, either (x + 4) or (x + 9) must equal. The values of x that would result in the given expression being equal to 0, in order from least to greatest, are and.

Jonah and his friends went to the movie theater. He bought a movie ticket, and he split the cost of a giant popcorn with his friends. Jonah's costs are represented by the expression 11+15x11+15x.

Write an expression that is equal to 56. include an exponent

A lawn mowing company had to mow one-ninth of a mile of grass. To make it quicker, they split the amount evenly between 2 workers. What fraction of the mile did each person mow?

Larry started with 3 poems in his journal. Then he started writing 3 poems each day. Which of the following graphs represents Larry's poem writing

Determinati numarul b astfel incat : (4x8) ^15 : 4^5:2^6=2^b si 3^4x3^5x3^17=3^b

1/x=6/x+15, 20-x/x=6/4, and 4/12=x+2/2x+13

If a sample of 26 students is taken from a population of 135 students, the population variance, o?, is the variance of how many students' heights? O A. Neither 26 nor 135 B. Both 26 and 135 O c. 135 O D. 26

Robert collected 330 aluminum cans. If 100 aluminum cans weigh 4 pounds, and the recycling center is paying 25 cents a pound, how much will Robert be paid for his 330 cans?

A single box of thumb tacks weighed 3 1/2 ounces. If a teacher had 4 1/7 boxes, how much would their combined weight be