Mary found 98 seashells and 34 starfishes on the beach. She gave Nancy some of her seashells. She has 39 seashells left. How many seashells did she give to Nancy?

Which system is equivalent to 1 5x2 + By2 = 50 (7x² + 2y² = 10² (A) 5x2 + By2 - 50 7-21x² - by² = 10 (B) 5x2 + by2 = 50 -21x²-by? - 30 (C) 35x2 + 42y2 = 250 (-35x2 - 10y2 - -50 (D) 35x2 + 42y2 = 350 -35x2 - 10/2 - -50

On a multiple choice test, each question has 4 possible answers. if you make a random guess on the first question, what is the probability that you are correct?

What is two hundred seven thousand, forty-eight in standard form

3. Round the following digits to the place value indicated a) 3 594 (tens) b) 20 385 (hundreds) c) 3.4985 (thousandths) d) 9.1258 (tenths)

What is the mean absolute deviation of 3, 8, 10, 4, 9

How do i find ratios in word problems?

183x4 by rounding to estimate

7.2 x 12 x 0.23 = ? Round to the nearest hundredth. A. 19.88 B. 19.87 C. 19.44 D. 19.43

What is 12/39 in simplest form

Find three consecutive even integer with the sum of - 84