Emma makes bronze jewellery. Bronze is a mixture of copper and tin in a ratio of 22 : 3. Emma has 88 kilograms of bronze.
What mass of tin does Emma have in her bronze mixture?

With alll of except for the 2 that i did already

The price of a visit to the dentist is calculated according to the formula 50+100n50+100n where nn is the number of cavities the dentist finds. on your last visit to the dentist, 22 cavities were found. what was the cost of your visit?

F. a fair coin is thrown in the air four times. if the coin lands with the head up on the first three tosses, what is the probability that the coin will land with the head up on the fourth toss? a. 0 b. 1/16 c. 1/8 d. 1/2