A writer earned $7 per hour at her job plus an additional $50 in tips on Friday. She earned more than $99 total. Write and solve an inequality that best represents the number of hours she worked on Friday.

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?