sally and marta have the same number of postcards after sally sold 18 postcards. Marta had 4 times as many postcards as sally

The Sum of a number and 5 times the number is 18. Find the number

John is 13 years old Lisa is four years older than John Bobby is six years younger than Lisa how old is Bobby

The ratio of boys to girls at a party is 3:5 2 boys leave the party The ratio of boys to girls is now 5:9 Work out the number of girls at the party. Show Full Working.

If you recieved a score of 80% on an assignment, what is the ratio of correct answers to incorrect anwers?

Three hundred people were surveyed about their favorite ride at an amusement park. The results of the survey are shown in the graph. How many people chose the Ferris wheel as their favorite ride? A. 54 B. 114 C. 75 D.

Quiz Active Which equation can be simplified to find the inverse of y = 2x? y = 21 x=2V

Shania's test scores in 8 subjects were 88, 91, 85, 74, 69, 72, 80, and 87. Which measure should Shania use to find how much the scores on her tests vary, on average, from the mean score? mode mean absolute deviation interquartile range mean

Tara walks 2 miles each day. How many miles does tara walk in a week?

Solve 30y^3-6y^2+2=0

F (x) = 1/4 x for x = - 5