Place grouping symbols to make the equations true

9*34+8:6=63

13+12-7:3*5=30

The probability of obtaining a 3 on a biased 4 sided dice is 0.3. How many times would you expect to obtain a 3 in 500 rolls of the dice?

A delivery truck uses $375 in gasoline during a 3 week period. if the truck is driven 5 days per week, how much is spent on gas each day?

What is an equation of the line with slope 6 and y-intercept - 4?

You put 550 in an account that earn 4.4 interest a year how much do u earn in 6 months

Find the radian measure of the central angle of a circle of radius r = 40 inches that intercepts an arc length s = 70 inches.

X^2-x+y-a^2=y-x+4a+4. Solve for x

Ky wants to buy three shirts, which were originally priced $49.96 each. The store will discount the price of the third shirt and then apply a 7.1% tax to the total cost of all three shirts.

Find the product of 20*9*5. Tell which property you used Tell property do you use

Sara likes to collect stamps. She has 68 boxes of stamps with 46 stamps in each box. She decides to share the stamps with her 3 older brothers. After sharing the stamps equally with her brothers, how many stamps does each person have now?

An 80% confidence interval is found to be (0.52, 0.58) what is the sample proportion?