What is the value of x when x + 7 = 21?

A) - 28

B) - 14

C) 3

D) 14

If 56 goes into 7 5 times than how many times does 1400768 go into 7

Find the distance between A (4. - 1) and B (-3,0)

Shella works 8 hours per day on monday, wednesday and friday and 6 hours per day on tuesday and thursday. she doesn't work on the weekend and she earned $324 per week. how much does she earn in dollars per hour

What are the two main methods for solving a system of equations?

Mary had swimming lessons every 3rd day and diving lessons every fifth day. If she had a swimming lesson and a diving lesson on January 6th, when is the next date on which she will have both a swimming and diving lesson?

A farmer sells 9.7 kilograms of apples and pears at a farmer's market. 1/4 of the weight is apples and the rest is pears. How many kilograms of pears did she sell at the farmer's market What is the fraction

An penguin is 45 inches tall. It is 24 inches taller than a rockhopper penguin. Write and solve an equation to find the height of a rockhopper penguin. Is your answer reasonable? Explain.

Kyra observed that 85% of the students at a library liked reading mystery stories. If 30 students at the library did not like reading mystery stories, the number of students at the library who liked mystery stories was.

Two lines intersect and two of the vertical. angles measure 37 what is the measure of the other two vertical angles

S=1+2. t o instante que passa pela origem s=0