Martin earned the following scores on his last five tests.

98, 78, 84, 75, 91

What is the mean of his scores?

85.2

106.5

71

84

Mika can eat 212121 hot dogs in 666 minutes. She wants to know how many minutes (m) (m) left parenthesis, m, right parenthesis it would take her to eat 353535 hot dogs if she can keep up the same pace.

Where does 196 come from?

A rectangular room is 14 feet by 20 feet. The ceiling is 8 feet high. How do you find the length and width of the smaller and larger wall?

The roof of a house rises 0.86 feet for every 1.36 feet of horizontal length. Write the ratio of rise to horizontal length as a fraction in simplest form.

X+y-z=5 - x-4y-8z=6 3x+5y-4z=-20

Simply the expression 3 (x+1) - 2 (3x+7)

What's the solution 6x-3y=-3 & - 2x+y=4

How many ways can you make 35?

The bill cost $35.00 but tax is 6% and you tip the waiter 20% what's your total

How many hundrethsn is 0.82 less than 17/20