Javier asks his mother how old a tree in their yard is. His mother says, "The sum of 10 and two-thirds of that sed's age, in years, is equal to 50,"
Javier vorhes the equation (1013].- so, where a los the tree's age in years. His ergstation is not contact. What es ca
he make?
O The variable a should be rustiplied by 10 only, and then added to .
The variable a
should be multiplied by 7 only and then added to 10,
O The variable a should be mutiplied by 5o, not by the sum of 10 ans
,
2
The variable a should be multiplied by 3 and 50 and set equal to 10

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.

This is a map of the mars exploration rover opportunity predicted landing site on mars. the scale is 1cm : 9.4km. what are the approximate measures of the actual length and width of the ellipse? i mostly need to know how to set it up : )

Using inductive reasoning, what are the next two number in this set? 2,3/2,4/3,5/4,