What is it called to find an approximate answer for a number?

in December a toy store sold 786 toy cars each toy car cost $7 including tax what was the total cost of the toy car sold including tax

Jasmine's cell phone company charges her $35 an month for phone service plus 0.50 for each text message. How many text messages does Jasmine send in a month if her bill was $52?

Chris has 5 race cars. Justin has 7 more race cars than Chris. How many race cars does Justin have?

How many outfits are possible with 2 pairs of jeans, 5 t-shirts, and 2 pairs shoes

Identify the property being illustrated: (12 + 5) + 21 = 12 + (5 + 21

If f (x) = 3^x and g (x) = 2x+5, at which value of x is f (x)

Match each equation with its solution set. Tiles a2 - 9a + 14 = 0 a2 + 9a + 14 = 0 a2 + 3a - 10 = 0 a2 + 5a - 14 = 0 a2 - 5a - 14 = 0 Pairs {-2, 7} {2, - 7} {-2, - 7} {7, 2}

Eliza is rolling a die and recording whether she gets an even or an odd number. She rolls the die 250 times and records the number that she gets in the table.

What number is 18% of 250

0.5 (x+0.1) - 0.1 (x-0.5)